试着翻译start/introduction （本地分支）

docs/start/introduction.md

@@ -9,25 +9,36 @@ previous_url: /index
 
 {% nativescript %}
 # Welcome to NativeScript
-
+# 认识 NativeScript
 NativeScript is how you build cross-platform, native iOS and Android apps without web views. Use Angular, TypeScript or modern JavaScript to get truly native UI and performance while sharing skills and code with the web. Get 100% access to native APIs via JavaScript and reuse of packages from npm, CocoaPods and Gradle. Open source and backed by Progress.
 {% endnativescript %}
 
+NativeScript 是一种用来开发ios和Android应用程序的跨平台技术，它摆脱了web views。共享网络技能和代码的同时，NactiveScript通过Angular、TypeScript或者现代JavaScript来获取原始原生UI和高性能。NativeScript可以获得100%原生APIs的访问权限，重复使用网络上大量的npm包，CocoaPods包和Gradle包。NativeScript是开源项目，由Progress维护。
+
 {% angular %}
 # NativeScript with Angular
-
+# 使用Angular
 NativeScript doesn’t require Angular, but it’s even better when you use it. You can fully reuse skills and code from the web to build beautiful, high performance native mobile apps without web views. NativeScript features deep integration with Angular, the latest and greatest (and fastest) Angular framework. Open source and backed by Progress.
+
+NativeScript 不强制要求使用Angular，但使用Angular会更好。使用Angular可以复用web开发上的经验和技能，从而做到在不使用web views的情况下创作漂亮、高性能的原生应用。NativeScript深度整合了Angular（最新，最强，最快的框架），它开源，并持续由Progress更新维护。
+
 {% endangular %}
 
 New to NativeScript? [Try out NativeScript on your phone](https://www.nativescript.org/nativescript-example-application?utm_medium=referral&utm_source=documentation&utm_campaign=getting-started) to see what a truly native app feels like.
 
+如果是NativeScript的新手 [可以在手机上安装NativeScript的样例App](https://www.nativescript.org/nativescript-example-application?utm_medium=referral&utm_source=documentation&utm_campaign=getting-started)，来体验原生应用的效果
+
 ## Get Started
 
+## 快速开始
+
 Ready to get started developing with NativeScript? We offer a set of comprehensive tutorials that walk you through installing NativeScript, and building a real-world iOS and Android app from scratch.
 
+准备好开始使用NativeScript进行开发吗？官方提供了一系列的教程，包括如何安装NativeScript，如何从零开始开发一个完整的ios或者Android app。
+
 <div id="start-button-container">
-  <a href="http://docs.nativescript.org/angular/tutorial/ng-chapter-0" class="Btn" id="ng-start-button">Get Started with TypeScript & Angular</a>
-  <a href="http://docs.nativescript.org/tutorial/chapter-0" class="Btn" id="js-start-button">Get Started with JavaScript</a>
+  <a href="http://docs.nativescript.org/angular/tutorial/ng-chapter-0" class="Btn" id="ng-start-button">快速开始 TypeScript & Angular版</a>
+  <a href="http://docs.nativescript.org/tutorial/chapter-0" class="Btn" id="js-start-button">快速开始 JavaScript版</a>
 </div>
 
 <script>
@@ -48,7 +59,13 @@ Ready to get started developing with NativeScript? We offer a set of comprehensi
 
 > **NOTE**: NativeScript also lets you use TypeScript _without_ Angular. If you’re interested in this approach, start with [our JavaScript tutorial](http://docs.nativescript.org/tutorial/chapter-0) to familiarize yourself with the basic NativeScript concepts, and then refer to [our TypeScript documentation](https://www.nativescript.org/using-typescript-with-nativescript-when-developing-mobile-apps) for your next steps.
 
+> **注意事项** 开发NativeScript程序也可以只使用TypeScript而_不_使用Angular。如果对这种方式感兴趣，可以从[JavaScript教程](http://docs.nativescript.org/tutorial/chapter-0) 开始熟悉NativeScript的基本概念，然后在读一下 [关于TypeScript](https://www.nativescript.org/using-typescript-with-nativescript-when-developing-mobile-apps) 章节的内容，相信就可以进行下一步的程序开发了。
+
 ## Join the NativeScript Community
+## 加入 NativeScript 社区
 
 We have a vibrant, engaged community and are here to help. You can find us on [Twitter](https://twitter.com/nativescript) and our [community forum](http://forum.nativescript.org/).
 
+NativeScript的社区非常活跃，从这里可以获得各种帮助。关注我们
+[Twitter](https://twitter.com/nativescript) 官方 [论坛](http://forum.nativescript.org/).
+