diff --git a/public/_includes/_main-nav.jade b/public/_includes/_main-nav.jade
index fdaa934f89..edd3d6457a 100644
--- a/public/_includes/_main-nav.jade
+++ b/public/_includes/_main-nav.jade
@@ -17,5 +17,4 @@ md-toolbar(class="main-nav background-regal l-pinned-top l-layer-5",scroll-y-off
       li.l-right <a class="main-nav-button" href="/docs/ts/latest/quickstart.html" md-button>立即开始！</a>
       li.l-right
         a.main-nav-button.md-button(ng-click="appCtrl.toggleSource($event)", href)
-          span(ng-if="!appCtrl.sourceVisible") 显示原文
-          span(ng-if="appCtrl.sourceVisible") 隐藏原文
+          span {{appCtrl.sourceVisible?'隐藏原文':'显示原文'}}
diff --git a/public/docs/ts/latest/guide/dependency-injection.jade b/public/docs/ts/latest/guide/dependency-injection.jade
index 24b10c438b..ba4f66b03e 100644
--- a/public/docs/ts/latest/guide/dependency-injection.jade
+++ b/public/docs/ts/latest/guide/dependency-injection.jade
@@ -23,7 +23,7 @@ block includes
   - [Angular dependency injection](#angular-dependency-injection)
   - [Angular依赖注入](#angular-dependency-injection)
   - [Injector providers](#injector-providers)
-  - [注入器提供商](#injector-providers)
+  - [注入器供应商](#injector-providers)
   - [Dependency injection tokens](#dependency-injection-tokens)
   - [依赖注入令牌](#dependency-injection-tokens)
   - [Summary](#summary)
diff --git a/public/docs/ts/latest/tutorial/toh-pt4.jade b/public/docs/ts/latest/tutorial/toh-pt4.jade
index abb5849339..c356ad2b65 100644
--- a/public/docs/ts/latest/tutorial/toh-pt4.jade
+++ b/public/docs/ts/latest/tutorial/toh-pt4.jade
@@ -139,7 +139,7 @@ code-example(language="bash").
   当TypeScript看到`@Injectable()`装饰器时，就会记下本服务的元数据。如果Angular需要往这个服务中注入其它依赖，就会使用这些元数据。
   
   The `HeroService` doesn't have any dependencies *at the moment*. Add the decorator anyway.
-  It is a "best practice" to apply the `@Injectable()` decorator ​*from the start*​ 
+  It is a "best practice" to apply the `@Injectable()` decorator *from the start* 
   both for consistency and for future-proofing.
   
   此刻，`HeroService`还没有任何依赖，但我们还是得加上这个装饰器。作为一项最佳实践，无论是出于提高统一性还是减少变更的目的，都应该从一开始就加上`@Injectable()`装饰器。
@@ -260,7 +260,7 @@ code-example(language="bash").
   我们很难在别的场景中把它换成别的实现。
   比如，能离线操作吗？能在测试时使用不同的模拟版本吗？这可不容易。
   
-  *What if ... what if ... Hey, we've got work to do!*
+  * What if ... what if ... Hey, we've got work to do!*
   * 如果……如果……嘿！这下我们可有得忙了！
   
   We get it. Really we do. 
@@ -320,6 +320,9 @@ code-example(format="." language="html").
 :marked
   The `providers` array  tells Angular to create a fresh instance of the `HeroService` when it creates a new `AppComponent`.
   The `AppComponent` can use that service to get heroes and so can every child component of its component tree.
+  
+  `providers`数组告诉Angular，当它创建新的`AppComponent`组件时，也要创建一个`HeroService`的新实例。
+  `AppComponent`会使用那个服务来获取影响列表，在它组件树中的每一个子组件也同样如此。
 a#child-component
 :marked
   ### *getHeroes* in the *AppComponent*
diff --git a/public/translate/cn/about.jade b/public/translate/cn/about.jade
index d6e055a0f1..36f8be0739 100644
--- a/public/translate/cn/about.jade
+++ b/public/translate/cn/about.jade
@@ -49,5 +49,7 @@
     在翻译和校对过程中，我们得到了很多人的帮助，在此一并致谢，他/她们是：
         
     - Joeylin
+    - 张旋
+    - 还有一些做好事不留名的雷锋
         
     想让你的名字也出现在这里吗？请提供[反馈、纠错](https://github.com/angular/angular-cn/issues)。