diff --git a/i18n/zh-cn.json b/i18n/zh-cn.json
index 8a9ce439..133a19d3 100644
--- a/i18n/zh-cn.json
+++ b/i18n/zh-cn.json
@@ -16,6 +16,7 @@
 		, "LOOPING THROUGH ARRAYS": "依次访问数组中的值"
 		, "OBJECTS":                "对象"
 		, "OBJECT PROPERTIES":      "对象的属性"
+		, "OBJECT KEYS":            "对象的键"
 		, "FUNCTIONS":              "函数"
 		, "FUNCTION ARGUMENTS":     "函数的参数"
 		, "SCOPE":                  "作用域"
diff --git a/i18n/zh-tw.json b/i18n/zh-tw.json
index 26d244b7..a9300c41 100644
--- a/i18n/zh-tw.json
+++ b/i18n/zh-tw.json
@@ -16,6 +16,7 @@
 		, "LOOPING THROUGH ARRAYS": "以迴圈存取陣列中的值"
 		, "OBJECTS":                "物件"
 		, "OBJECT PROPERTIES":      "物件的屬性"
+		, "OBJECT KEYS":            "物件的鍵"
 		, "FUNCTIONS":              "函式"
 		, "FUNCTION ARGUMENTS":     "函式的參數"
 		, "SCOPE":                  "作用域"
diff --git a/problems/object-keys/problem_zh-cn.md b/problems/object-keys/problem_zh-cn.md
index 1b07c63f..8c0d2869 100644
--- a/problems/object-keys/problem_zh-cn.md
+++ b/problems/object-keys/problem_zh-cn.md
@@ -1,7 +1,6 @@
-JavaScript provides a native way of listing all the available keys of an object. This can be helpful for looping through all the properties of an object and manipulating their values accordingly.
+JavaScript 提供了一种原生的方式，用来列出对象的所有键（keys）。当你需要遍历对象的所有属性并相应地操作它们的值时，这会很有用。
 
-Here's an example of listing all object keys using the **Object.keys()**
-prototype method.
+下面是一个使用 **Object.keys()** 原型方法来列出对象所有键的例子。
 
 ```js
 const car = {
@@ -14,13 +13,13 @@ const keys = Object.keys(car)
 console.log(keys)
 ```
 
-The above code will print an array of strings, where each string is a key in the car object. `['make', 'model', 'year']`
+上面的代码会打印一个字符串数组，其中每个字符串都是 car 对象中的一个键。`['make', 'model', 'year']`
 
-## The challenge:
+## 挑战任务：
 
-Create a file named `object-keys.js`.
+创建一个名为 `object-keys.js` 的文件。
 
-In that file, define a variable named `car` like this:
+在该文件中，像这样定义一个名为 `car` 的变量：
 
 ```js
 const car = {
@@ -30,14 +29,14 @@ const car = {
 }
 ```
 
-Then define another variable named `keys` like this:
+然后像这样定义另一个名为 `keys` 的变量：
 ```js
 const keys = Object.keys(car)
 ```
 
-Use `console.log()` to print the `keys` variable to the terminal.
+使用 `console.log()` 将 `keys` 变量打印到终端。
 
-Check to see if your program is correct by running this command:
+通过运行以下命令来检查你的程序是否正确：
 
 ```bash
 javascripting verify object-keys.js
diff --git a/problems/object-keys/problem_zh-tw.md b/problems/object-keys/problem_zh-tw.md
index 1b07c63f..d06e7e83 100644
--- a/problems/object-keys/problem_zh-tw.md
+++ b/problems/object-keys/problem_zh-tw.md
@@ -1,7 +1,6 @@
-JavaScript provides a native way of listing all the available keys of an object. This can be helpful for looping through all the properties of an object and manipulating their values accordingly.
+JavaScript 提供了一種原生的方式，用來列出物件（object）的所有鍵（keys）。當你需要遍歷物件的所有屬性並據此操作它們的值時，這會很有用。
 
-Here's an example of listing all object keys using the **Object.keys()**
-prototype method.
+下面是一個使用 **Object.keys()** 原型方法來列出物件所有鍵的範例。
 
 ```js
 const car = {
@@ -14,13 +13,13 @@ const keys = Object.keys(car)
 console.log(keys)
 ```
 
-The above code will print an array of strings, where each string is a key in the car object. `['make', 'model', 'year']`
+上面的程式碼會印出一個字串陣列，其中每個字串都是 car 物件中的一個鍵。`['make', 'model', 'year']`
 
-## The challenge:
+## 挑戰任務：
 
-Create a file named `object-keys.js`.
+建立一個名為 `object-keys.js` 的檔案。
 
-In that file, define a variable named `car` like this:
+在該檔案中，像這樣定義一個名為 `car` 的變數：
 
 ```js
 const car = {
@@ -30,14 +29,14 @@ const car = {
 }
 ```
 
-Then define another variable named `keys` like this:
+然後像這樣定義另一個名為 `keys` 的變數：
 ```js
 const keys = Object.keys(car)
 ```
 
-Use `console.log()` to print the `keys` variable to the terminal.
+使用 `console.log()` 將 `keys` 變數印到終端機。
 
-Check to see if your program is correct by running this command:
+透過執行以下指令來檢查你的程式是否正確：
 
 ```bash
 javascripting verify object-keys.js
diff --git a/problems/object-keys/solution_zh-cn.md b/problems/object-keys/solution_zh-cn.md
index 0f3540ea..4e21cd39 100644
--- a/problems/object-keys/solution_zh-cn.md
+++ b/problems/object-keys/solution_zh-cn.md
@@ -1,11 +1,11 @@
 ---
 
-# CORRECT.
+# 正确！
 
-Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+很好，你使用了 Object.keys() 原型方法。当你需要列出对象的键时，记得使用它。
 
-The next challenge is all about **functions**.
+下一个挑战是关于 **函数（functions）** 的。
 
-Run `javascripting` in the console to choose the next challenge.
+在控制台中运行 `javascripting` 来选择下一个挑战。
 
 ---
diff --git a/problems/object-keys/solution_zh-tw.md b/problems/object-keys/solution_zh-tw.md
index 0f3540ea..c18b45e6 100644
--- a/problems/object-keys/solution_zh-tw.md
+++ b/problems/object-keys/solution_zh-tw.md
@@ -1,11 +1,11 @@
 ---
 
-# CORRECT.
+# 正確！
 
-Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+很好，你使用了 Object.keys() 原型方法。當你需要列出物件的鍵時，記得使用它。
 
-The next challenge is all about **functions**.
+下一個挑戰是關於 **函式（functions）** 的。
 
-Run `javascripting` in the console to choose the next challenge.
+在終端機執行 `javascripting` 來選擇下一個挑戰。
 
 ---
diff --git a/problems/scope/problem_zh-cn.md b/problems/scope/problem_zh-cn.md
index f8c2ab4f..074329e8 100644
--- a/problems/scope/problem_zh-cn.md
+++ b/problems/scope/problem_zh-cn.md
@@ -60,3 +60,9 @@ const a = 1; const b = 2; const c = 3;
 ```js
 console.log(`a: ${a}, b: ${b}, c: ${c}`);
 ```
+
+通过运行以下命令检查你的程序是否正确：
+
+```bash
+javascripting verify scope.js
+```
diff --git a/problems/scope/problem_zh-tw.md b/problems/scope/problem_zh-tw.md
index d544fd62..f3c4d0a7 100644
--- a/problems/scope/problem_zh-tw.md
+++ b/problems/scope/problem_zh-tw.md
@@ -60,3 +60,9 @@ const a = 1; const b = 2; const c = 3;
 ```js
 console.log(`a: ${a}, b: ${b}, c: ${c}`);
 ```
+
+透過執行以下指令來檢查你的程式是否正確：
+
+```bash
+javascripting verify scope.js
+```