diff --git a/exercise/exercises/primitive_types/README.md b/exercise/exercises/primitive_types/README.md
index cea69b02..8ff09a7e 100644
--- a/exercise/exercises/primitive_types/README.md
+++ b/exercise/exercises/primitive_types/README.md
@@ -1,9 +1,8 @@
-# Primitive Types
+# 基本类型（Primitive Types）
 
-Rust has a couple of basic types that are directly implemented into the
-compiler. In this section, we'll go through the most important ones.
+Rust 有几个直接在编译器中实现基本类型。在本节中，我们来看看最重要的几个。
 
-## Further information
+## 更多信息
 
 - [Data Types](https://doc.rust-lang.org/stable/book/ch03-02-data-types.html)
 - [The Slice Type](https://doc.rust-lang.org/stable/book/ch04-03-slices.html)
diff --git a/exercise/exercises/primitive_types/primitive_types1.rs b/exercise/exercises/primitive_types/primitive_types1.rs
index 09121392..2ab9ed61 100644
--- a/exercise/exercises/primitive_types/primitive_types1.rs
+++ b/exercise/exercises/primitive_types/primitive_types1.rs
@@ -1,6 +1,6 @@
 // primitive_types1.rs
-// Fill in the rest of the line that has code missing!
-// No hints, there's no tricks, just get used to typing these :)
+// 补充不完整代码行的缺失部分！
+// 没有提示，也没有什么诀窍，只要习惯于键入这些内容就可以了 :)
 
 // I AM NOT DONE
 
@@ -9,11 +9,11 @@ fn main() {
 
     let is_morning = true;
     if is_morning {
-        println!("Good morning!");
+        println!("Good morning!");// 译："早上好"
     }
 
-    let // Finish the rest of this line like the example! Or make it be false!
+    let // 参照上面的示例来补充这一行的缺失部分！或者让它值为 false ！
     if is_evening {
-        println!("Good evening!");
+        println!("Good evening!");// 译："晚上好"
     }
 }
diff --git a/exercise/exercises/primitive_types/primitive_types2.rs b/exercise/exercises/primitive_types/primitive_types2.rs
index 6576a4d5..506ae11e 100644
--- a/exercise/exercises/primitive_types/primitive_types2.rs
+++ b/exercise/exercises/primitive_types/primitive_types2.rs
@@ -1,6 +1,6 @@
 // primitive_types2.rs
-// Fill in the rest of the line that has code missing!
-// No hints, there's no tricks, just get used to typing these :)
+// 补充不完整代码行的缺失部分！
+// 没有提示，也没有什么诀窍，只要习惯于键入这些内容就可以了 :)
 
 // I AM NOT DONE
 
@@ -9,16 +9,16 @@ fn main() {
 
     let my_first_initial = 'C';
     if my_first_initial.is_alphabetic() {
-        println!("Alphabetical!");
+        println!("Alphabetical!");// 译："字母！"
     } else if my_first_initial.is_numeric() {
-        println!("Numerical!");
+        println!("Numerical!");// 译："数字！"
     } else {
-        println!("Neither alphabetic nor numeric!");
+        println!("Neither alphabetic nor numeric!");// 译："既不是字母也不是数字！"
     }
 
-    let // Finish this line like the example! What's your favorite character?
-    // Try a letter, try a number, try a special character, try a character
-    // from a different language than your own, try an emoji!
+    let // 像上面的示例一样完成这行代码！你最喜欢的角色是什么？
+    // 试试一个字母，或者一个数字，也可以一个特殊字符，又或者一个不属于
+    // 你母语的字符，一个表情符号看起来也不错。
     if your_character.is_alphabetic() {
         println!("Alphabetical!");
     } else if your_character.is_numeric() {
diff --git a/exercise/exercises/primitive_types/primitive_types3.rs b/exercise/exercises/primitive_types/primitive_types3.rs
index aaa518be..9d529db3 100644
--- a/exercise/exercises/primitive_types/primitive_types3.rs
+++ b/exercise/exercises/primitive_types/primitive_types3.rs
@@ -1,6 +1,6 @@
 // primitive_types3.rs
-// Create an array with at least 100 elements in it where the ??? is.
-// Execute `rustlings hint primitive_types3` for hints!
+// 在 ??? 处创建一个不少于 100 个元素的数组。
+// 执行 `rustex hint primitive_types3` 获取提示！
 
 // I AM NOT DONE
 
@@ -8,8 +8,8 @@ fn main() {
     let a = ???
 
     if a.len() >= 100 {
-        println!("Wow, that's a big array!");
+        println!("Wow, that's a big array!");// 译："哇！那数组可真大！"
     } else {
-        println!("Meh, I eat arrays like that for breakfast.");
+        println!("Meh, I eat arrays like that for breakfast.");// 译："嗯，我把这样的数组当早餐吃。"
     }
 }
diff --git a/exercise/exercises/primitive_types/primitive_types4.rs b/exercise/exercises/primitive_types/primitive_types4.rs
index 10b553e9..8f102e6d 100644
--- a/exercise/exercises/primitive_types/primitive_types4.rs
+++ b/exercise/exercises/primitive_types/primitive_types4.rs
@@ -1,6 +1,6 @@
 // primitive_types4.rs
-// Get a slice out of Array a where the ??? is so that the test passes.
-// Execute `rustlings hint primitive_types4` for hints!!
+// 在 ??? 处获取数组 a 的一个切片（slice），以通过测试。
+// 执行 `rustex hint primitive_types4` 获取提示！!
 
 // I AM NOT DONE
 
diff --git a/exercise/exercises/primitive_types/primitive_types5.rs b/exercise/exercises/primitive_types/primitive_types5.rs
index 680d8d23..b5239838 100644
--- a/exercise/exercises/primitive_types/primitive_types5.rs
+++ b/exercise/exercises/primitive_types/primitive_types5.rs
@@ -1,12 +1,12 @@
 // primitive_types5.rs
-// Destructure the `cat` tuple so that the println will work.
-// Execute `rustlings hint primitive_types5` for hints!
+// 对 `cat` 元组进行解构（Destructure），使 println 能够运行。
+// 执行 `rustex hint primitive_types5` 获取提示！
 
 // I AM NOT DONE
 
 fn main() {
     let cat = ("Furry McFurson", 3.5);
-    let /* your pattern here */ = cat;
+    let /* your pattern here */ = cat;// 译：模式写在这
 
     println!("{} is {} years old.", name, age);
 }
diff --git a/exercise/exercises/primitive_types/primitive_types6.rs b/exercise/exercises/primitive_types/primitive_types6.rs
index b8c9b82b..3fdd59b2 100644
--- a/exercise/exercises/primitive_types/primitive_types6.rs
+++ b/exercise/exercises/primitive_types/primitive_types6.rs
@@ -1,16 +1,16 @@
 // primitive_types6.rs
-// Use a tuple index to access the second element of `numbers`.
-// You can put the expression for the second element where ??? is so that the test passes.
-// Execute `rustlings hint primitive_types6` for hints!
+// 使用元组索引（tuple index）来访问 `numbers` 的第二个元素。
+// 你可以把第二个元素的表达式放在 ??? 处，这样测试就会通过。
+// 执行 `rustex hint primitive_types6` 获取提示！
 
 // I AM NOT DONE
 
 #[test]
 fn indexing_tuple() {
     let numbers = (1, 2, 3);
-    // Replace below ??? with the tuple indexing syntax.
+    // 用元组索引的语法替换下面的 ???
     let second = ???;
 
     assert_eq!(2, second,
-        "This is not the 2nd number in the tuple!")
+        "This is not the 2nd number in the tuple!")// 译：这不是元组中的第二个数字!
 }
diff --git a/exercise/info.toml b/exercise/info.toml
index d94f55e2..8b194743 100644
--- a/exercise/info.toml
+++ b/exercise/info.toml
@@ -212,40 +212,37 @@ https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html#mutable-ref
 name = "primitive_types1"
 path = "exercises/primitive_types/primitive_types1.rs"
 mode = "compile"
-hint = "No hints this time ;)"
+hint = "这次没有提示 ;)"
 
 [[exercises]]
 name = "primitive_types2"
 path = "exercises/primitive_types/primitive_types2.rs"
 mode = "compile"
-hint = "No hints this time ;)"
+hint = "这次没有提示 ;)"
 
 [[exercises]]
 name = "primitive_types3"
 path = "exercises/primitive_types/primitive_types3.rs"
 mode = "compile"
 hint = """
-There's a shorthand to initialize Arrays with a certain size that does not
-require you to type in 100 items (but you certainly can if you want!).
-For example, you can do:
+有一种简便的方法可以初始化具有一定大小的数组，而不需要你输入 100 个
+元素（但如果你想的话，那当然可以！）。
+例如，你可以这样做：
 let array = ["Are we there yet?"; 10];
 
-Bonus: what are some other things you could have that would return true
-for `a.len() >= 100`?"""
+额外目标: 还有哪些东西可以在 `a.len()>=100` 时返回 true """
 
 [[exercises]]
 name = "primitive_types4"
 path = "exercises/primitive_types/primitive_types4.rs"
 mode = "test"
 hint = """
-Take a look at the Understanding Ownership -> Slices -> Other Slices section of the book:
-https://doc.rust-lang.org/book/ch04-03-slices.html
-and use the starting and ending indices of the items in the Array
-that you want to end up in the slice.
+看看这本书的：Understanding Ownership -> Slices -> Other Slices 章节吧：
+https://doc.rust-lang.org/book/ch04-03-slices.html，
+然后找出所需切片元素对应数组里的起始和截止下标。 
 
-If you're curious why the first argument of `assert_eq!` does not
-have an ampersand for a reference since the second argument is a
-reference, take a look at the Deref coercions section of the book:
+如果你好奇既然 `assert_eq!` 的第二个参数是引用，为什么第一个参数
+没有使用 & 号用来表示引用，可以看看这本书的 Deref 强制转换部分：
 https://doc.rust-lang.org/book/ch15-02-deref.html"""
 
 [[exercises]]
@@ -253,22 +250,20 @@ name = "primitive_types5"
 path = "exercises/primitive_types/primitive_types5.rs"
 mode = "compile"
 hint = """
-Take a look at the Data Types -> The Tuple Type section of the book:
+看看这本书的 Data Types -> The Tuple Type 类型章节：
 https://doc.rust-lang.org/book/ch03-02-data-types.html#the-tuple-type
-Particularly the part about destructuring (second to last example in the section).
-You'll need to make a pattern to bind `name` and `age` to the appropriate parts
-of the tuple. You can do it!!"""
+特别是关于解构的部分（这节中倒数第二个例子）。
+你需要一个模式将 `name` 和 `age` 绑定到元组的适当部分。你能够做到的！！"""
 
 [[exercises]]
 name = "primitive_types6"
 path = "exercises/primitive_types/primitive_types6.rs"
 mode = "test"
 hint = """
-While you could use a destructuring `let` for the tuple here, try
-indexing into it instead, as explained in the last example of the
-Data Types -> The Tuple Type section of the book:
+虽然你可以使用 `let` 对元组进行解构 ，但不妨试试对它进行索引，
+正如这本书的 Data Types -> The Tuple Type 部分的最后一个例子表示的那样。
 https://doc.rust-lang.org/book/ch03-02-data-types.html#the-tuple-type
-Now you have another tool in your toolbox!"""
+现在，你的工具箱里又多了一个工具！"""
 
 # STRUCTS