diff --git a/en/src/basic-types/functions.md b/en/src/basic-types/functions.md
index a9acba0..6f4abfe 100644
--- a/en/src/basic-types/functions.md
+++ b/en/src/basic-types/functions.md
@@ -98,4 +98,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/basic-types/functions.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/basic-types/numbers.md b/en/src/basic-types/numbers.md
index 32a1c95..75e5b1b 100644
--- a/en/src/basic-types/numbers.md
+++ b/en/src/basic-types/numbers.md
@@ -183,4 +183,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/basic-types/numbers.md)(under the solutions path), but only use it when you need it
diff --git a/en/src/compound-types/array.md b/en/src/compound-types/array.md
index d884a3b..281c141 100644
--- a/en/src/compound-types/array.md
+++ b/en/src/compound-types/array.md
@@ -99,4 +99,4 @@ fn main() {
 
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/array.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/compound-types/enum.md b/en/src/compound-types/enum.md
index d5d1d81..056e577 100644
--- a/en/src/compound-types/enum.md
+++ b/en/src/compound-types/enum.md
@@ -208,4 +208,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/enum.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/compound-types/slice.md b/en/src/compound-types/slice.md
index 53f981f..c883c3e 100644
--- a/en/src/compound-types/slice.md
+++ b/en/src/compound-types/slice.md
@@ -97,4 +97,4 @@ fn first_word(s: &str) -> &str {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/slice.md)(under the solutions path), but only use it when you need it
diff --git a/en/src/compound-types/string.md b/en/src/compound-types/string.md
index 77cb702..2d02825 100644
--- a/en/src/compound-types/string.md
+++ b/en/src/compound-types/string.md
@@ -264,4 +264,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/string.md)(under the solutions path), but only use it when you need it
diff --git a/en/src/compound-types/struct.md b/en/src/compound-types/struct.md
index 4e6f2fd..924a547 100644
--- a/en/src/compound-types/struct.md
+++ b/en/src/compound-types/struct.md
@@ -228,4 +228,4 @@ fn main() {
 } 
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/struct.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/compound-types/tuple.md b/en/src/compound-types/tuple.md
index b882cd6..1861797 100644
--- a/en/src/compound-types/tuple.md
+++ b/en/src/compound-types/tuple.md
@@ -86,4 +86,4 @@ fn sum_multiply(nums: (i32, i32)) -> (i32, i32) {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/tuple.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/crate-module/crate.md b/en/src/crate-module/crate.md
index 6f0e2bb..9b0f1bd 100644
--- a/en/src/crate-module/crate.md
+++ b/en/src/crate-module/crate.md
@@ -106,4 +106,4 @@ After this step, there should be two crates in package `hello-package`: **a bina
 Yep, as you can see, the above package structure is very standard and is widely used in many Rust projects.
 
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it :)
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/crate-module/crate.md) (under the solutions path), but only use it when you need it :)
\ No newline at end of file
diff --git a/en/src/crate-module/module.md b/en/src/crate-module/module.md
index 164b8cd..cb2c467 100644
--- a/en/src/crate-module/module.md
+++ b/en/src/crate-module/module.md
@@ -192,4 +192,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/crate-module/module.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/crate-module/use-pub.md b/en/src/crate-module/use-pub.md
index e4572bc..eed7154 100644
--- a/en/src/crate-module/use-pub.md
+++ b/en/src/crate-module/use-pub.md
@@ -66,4 +66,4 @@ pub mod a {
 The full code of `hello-package` is [here](https://github.com/sunface/rust-by-practice/tree/master/practices/hello-package).
 
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it :)
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/crate-module/use-pub.md) (under the solutions path), but only use it when you need it :)
\ No newline at end of file
diff --git a/en/src/fight-compiler/borrowing.md b/en/src/fight-compiler/borrowing.md
index 3c798d2..98467d3 100644
--- a/en/src/fight-compiler/borrowing.md
+++ b/en/src/fight-compiler/borrowing.md
@@ -26,4 +26,5 @@ impl test {
 }
 
 fn main() {}
-```
\ No newline at end of file
+```
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/fight-compiler/borrowing.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/formatted-output/debug-display.md b/en/src/formatted-output/debug-display.md
index e6f8243..34e98f1 100644
--- a/en/src/formatted-output/debug-display.md
+++ b/en/src/formatted-output/debug-display.md
@@ -151,3 +151,5 @@ fn main() {
 }
 ```
 
+
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/formatted-output/debug-display.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/formatted-output/formatting.md b/en/src/formatted-output/formatting.md
index 8036939..1918916 100644
--- a/en/src/formatted-output/formatting.md
+++ b/en/src/formatted-output/formatting.md
@@ -180,3 +180,5 @@ fn main() {
     println!("Hello {{}}"); // => Hello {}
 }
 ```
+
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/formatted-output/formatting.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/formatted-output/println.md b/en/src/formatted-output/println.md
index f9e24b7..34d483b 100644
--- a/en/src/formatted-output/println.md
+++ b/en/src/formatted-output/println.md
@@ -36,3 +36,5 @@ fn main() {
    __("Sunface!");
 }
 ```
+
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/formatted-output/println.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/functional-programing/closure.md b/en/src/functional-programing/closure.md
index 43cf78c..cc1e0ce 100644
--- a/en/src/functional-programing/closure.md
+++ b/en/src/functional-programing/closure.md
@@ -432,4 +432,5 @@ fn call_with_different_values() {
 
     assert_eq!(v2, 1);
 }
-```
\ No newline at end of file
+```
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/functional-programing/closure.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/functional-programing/iterator.md b/en/src/functional-programing/iterator.md
index 8b795b8..95b6b7f 100644
--- a/en/src/functional-programing/iterator.md
+++ b/en/src/functional-programing/iterator.md
@@ -350,3 +350,5 @@ fn main() {
     );
 }
 ```
+
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/functional-programing/iterator.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/generics-traits/const-generics.md b/en/src/generics-traits/const-generics.md
index d3217ed..9546d42 100644
--- a/en/src/generics-traits/const-generics.md
+++ b/en/src/generics-traits/const-generics.md
@@ -142,4 +142,4 @@ pub trait IsTrue {}
 impl IsTrue for Assert<true> {}
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it :)
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/const-generics.md)(under the solutions path), but only use it when you need it :)
\ No newline at end of file
diff --git a/en/src/generics-traits/generics.md b/en/src/generics-traits/generics.md
index a936610..f93da44 100644
--- a/en/src/generics-traits/generics.md
+++ b/en/src/generics-traits/generics.md
@@ -152,5 +152,5 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/generics.md)(under the solutions path), but only use it when you need it
 
diff --git a/en/src/generics-traits/trait-object.md b/en/src/generics-traits/trait-object.md
index dea4897..3c7a565 100644
--- a/en/src/generics-traits/trait-object.md
+++ b/en/src/generics-traits/trait-object.md
@@ -226,4 +226,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/trait-object.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/generics-traits/traits.md b/en/src/generics-traits/traits.md
index 938d852..1e5a28d 100644
--- a/en/src/generics-traits/traits.md
+++ b/en/src/generics-traits/traits.md
@@ -469,4 +469,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it :)
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/traits.md)(under the solutions path), but only use it when you need it :)
\ No newline at end of file
diff --git a/en/src/lifetime/advance.md b/en/src/lifetime/advance.md
index af50ab7..0fc5f57 100644
--- a/en/src/lifetime/advance.md
+++ b/en/src/lifetime/advance.md
@@ -282,3 +282,5 @@ fn use_list(list: &List) {
     println!("{}", list.manager.text);
 }
 ```
+
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/advance.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/lifetime/basic.md b/en/src/lifetime/basic.md
index 70b9eb2..e8f7d35 100644
--- a/en/src/lifetime/basic.md
+++ b/en/src/lifetime/basic.md
@@ -355,4 +355,5 @@ enum Either<'a> {
 }
 
 fn main() {}
-```
\ No newline at end of file
+```
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/basic.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/lifetime/static.md b/en/src/lifetime/static.md
index 254e787..b1160ff 100644
--- a/en/src/lifetime/static.md
+++ b/en/src/lifetime/static.md
@@ -195,3 +195,5 @@ fn print_g(t: &'static String) {
   println!("{}", t);
 }
 ```
+
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/static.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/ownership/borrowing.md b/en/src/ownership/borrowing.md
index d0de771..8a5e7e9 100644
--- a/en/src/ownership/borrowing.md
+++ b/en/src/ownership/borrowing.md
@@ -183,4 +183,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/ownership/borrowing.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/ownership/ownership.md b/en/src/ownership/ownership.md
index 01bd390..e0054f9 100644
--- a/en/src/ownership/ownership.md
+++ b/en/src/ownership/ownership.md
@@ -167,4 +167,4 @@ fn main() {
 ```
 
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/ownership/ownership.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/pattern-match/patterns.md b/en/src/pattern-match/patterns.md
index 0f8cb10..2a3a52e 100644
--- a/en/src/pattern-match/patterns.md
+++ b/en/src/pattern-match/patterns.md
@@ -116,4 +116,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/pattern-match/patterns.md)(under the solutions path), but only use it when you need it
diff --git a/en/src/result-panic/panic.md b/en/src/result-panic/panic.md
index da71ba6..be63274 100644
--- a/en/src/result-panic/panic.md
+++ b/en/src/result-panic/panic.md
@@ -109,3 +109,5 @@ If in your project you need to make the resulting binary as small as possible, y
 panic = 'abort'
 ```
 
+
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/result-panic/panic.md)(under the solutions path), but only use it when you need it :)
diff --git a/en/src/result-panic/result.md b/en/src/result-panic/result.md
index 37abc34..695564e 100644
--- a/en/src/result-panic/result.md
+++ b/en/src/result-panic/result.md
@@ -209,4 +209,5 @@ fn main() -> Result<(), ParseIntError> {
     println!("{}", number);
     Ok(())
 }
-```
\ No newline at end of file
+```
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/result-panic/result.md)(under the solutions path), but only use it when you need it :)
diff --git a/zh-CN/src/functional-programing/closure.md b/zh-CN/src/functional-programing/closure.md
index fb73740..bd51bca 100644
--- a/zh-CN/src/functional-programing/closure.md
+++ b/zh-CN/src/functional-programing/closure.md
@@ -48,4 +48,5 @@ fn call_with_different_values() {
 
     assert_eq!(v2, 1);
 }
-```
\ No newline at end of file
+```
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/functional-programing/closure.md)找到答案(在 solutions 路径下)
diff --git a/zh-CN/src/functional-programing/iterator.md b/zh-CN/src/functional-programing/iterator.md
index 4fb4459..c264d57 100644
--- a/zh-CN/src/functional-programing/iterator.md
+++ b/zh-CN/src/functional-programing/iterator.md
@@ -1,2 +1,4 @@
 # Iterator
 
+
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/functional-programing/iterator.md)找到答案(在 solutions 路径下)
diff --git a/zh-CN/src/lifetime/advance.md b/zh-CN/src/lifetime/advance.md
index af2991e..5e883d4 100644
--- a/zh-CN/src/lifetime/advance.md
+++ b/zh-CN/src/lifetime/advance.md
@@ -283,3 +283,5 @@ fn use_list(list: &List) {
     println!("{}", list.manager.text);
 }
 ```
+
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/advance.md)找到答案(在 solutions 路径下)
diff --git a/zh-CN/src/lifetime/basic.md b/zh-CN/src/lifetime/basic.md
index 55fa041..193f448 100644
--- a/zh-CN/src/lifetime/basic.md
+++ b/zh-CN/src/lifetime/basic.md
@@ -335,3 +335,5 @@ enum Either<'a> {
 
 fn main() {}
 ```
+
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/basic.md)找到答案(在 solutions 路径下)
diff --git a/zh-CN/src/lifetime/static.md b/zh-CN/src/lifetime/static.md
index 6642b90..cf90c5b 100644
--- a/zh-CN/src/lifetime/static.md
+++ b/zh-CN/src/lifetime/static.md
@@ -185,3 +185,5 @@ fn print_g(t: &'static String) {
   println!("{}", t);
 }
 ```
+
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/static.md)找到答案(在 solutions 路径下)
diff --git a/zh-CN/src/result-panic/panic.md b/zh-CN/src/result-panic/panic.md
index 760faef..ffbe1df 100644
--- a/zh-CN/src/result-panic/panic.md
+++ b/zh-CN/src/result-panic/panic.md
@@ -109,3 +109,5 @@ note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose bac
 panic = 'abort'
 ```
 
+
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/result-panic/panic.md)找到答案(在 solutions 路径下)
diff --git a/zh-CN/src/result-panic/result.md b/zh-CN/src/result-panic/result.md
index 05d2f21..ffb1968 100644
--- a/zh-CN/src/result-panic/result.md
+++ b/zh-CN/src/result-panic/result.md
@@ -207,4 +207,5 @@ fn main() -> Result<(), ParseIntError> {
     println!("{}", number);
     Ok(())
 }
-```
\ No newline at end of file
+```
+> 你可以在[这里](https://github.com/sunface/rust-by-practice/blob/master/solutions/result-panic/result.md)找到答案(在 solutions 路径下)