diff --git a/public/docs/ts/latest/tutorial/toh-pt1.jade b/public/docs/ts/latest/tutorial/toh-pt1.jade
index 19c9c683d6..8028e17c87 100644
--- a/public/docs/ts/latest/tutorial/toh-pt1.jade
+++ b/public/docs/ts/latest/tutorial/toh-pt1.jade
@@ -166,12 +166,22 @@ code-example(language="sh" class="code-shell").
Users should be able to edit the hero name in an `` textbox.
The textbox should both _display_ the hero's `name` property
and _update_ that property as the user types.
+
+ 用户应该能在一个``输入框中编辑英雄的名字。
+ 当用户输入时,这个输入框应该能同时*显示*和*修改*英雄的`name`属性。
You need a two-way binding between the `` form element and the `hero.name` property.
+
+ 也就是说,我们要在表单元素``和组件的`hero.name`属性之间建立双向绑定。
### Two-way binding
+
+ ### 双向绑定
Refactor the hero name in the template so it looks like this:
+
+ 把模板中的英雄名字重构成这样:
+
+makeExample('toh-1/ts/app/app.component.1.ts', 'name-input')(format='.')
:marked
@@ -179,22 +189,40 @@ code-example(language="sh" class="code-shell").
to the textbox.
Data flows _in both directions:_ from the property to the textbox,
and from the textbox back to the property.
+
+ `[(ngModel)]`是一个Angular语法,用与把`hero.name`绑定到输入框中。
+ 它的数据流是*双向的*:从属性到输入框,并且从输入框回到属性。
Unfortunately, immediately after this change, the application breaks.
If you looked in the browser console, you'd see Angular complaining that
"`ngModel` ... isn't a known property of `input`."
+
+ 不幸的是,做了这项改动之后,我们的程序崩溃了。
+ 打开浏览器的控制台,我们会看到Angular抱怨说:"`ngModel` ... isn't a known property of `input`."(`ngModel`不是`input`元素的已知属性)
Although `NgModel` is a valid Angular directive, it isn't available by default.
It belongs to the optional `FormsModule`.
You must opt-in to using that module.
+
+ 虽然`NgModel`是一个有效的Angular指令,但它默认情况下却是不可用的。
+ 它属于一个可选模块`FormsModule`。
+ 我们必须选择使用那个模块。
### Import the _FormsModule_
+
+ ### 导入 _FormsModule_
Open the `app.module.ts` file and import the `FormsModule` symbol from the `@angular/forms` library.
Then add the `FormsModule` to the `@NgModule` metadata's `imports` array, which contains the list
of external modules that the app uses.
+
+ 打开`app.module.ts`文件,并且从`@angular/forms`库中导入符号`FormsModule`。
+ 然后把`FormsModule`添加到`@NgModule`元数据的`imports`数组中,它是当前应用正在使用的外部模块列表。
The updated `AppModule` looks like this:
+
+ 修改后的`AppModule`是这样的:
+
+makeExample('toh-1/ts/src/app/app.module.ts', '', 'app.module.ts (FormsModule import)')
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