这是一个新的，新鲜更新界面。
如果小心地使用，动态更新界面的选项能够极大地简化该界面；例如，只有应用菜单的选项时，用户才能容易地显示菜单。
Used carefully, the option of updating an interface on the fly can simplify that interface dramatically; presenting a menu only when its options apply, for instance, can be easier for users.
当然你的控制器函数不会只是输出一段调试信息，你可以根据需要做任何事情，获取数据、更新界面或者其他什么的都行。
Of course, your Controller function probably won't actually just log a message to the console, it can do anything needed by your app - whether it's fetching data, updating the UI or anything else.
更新：新界面已全面部署，若看不到切换链接请刷新gmail。
Update: the new look is now available to everyone. Refresh Gmail if you don't see the link to switch.
早在七月份我们就为大家展示了gmail新界面的预览，并且这个夏天我们一直致力于推出更多的更新和改善。
Back in July we showed you a preview of Gmail's new look, and we've been working this summer to make even more updates and improvements.
早在七月份我们就为大家展示了gmail新界面的预览，并且这个夏天我们一直致力于推出更多的更新和改善。
Back in July we showed you a preview of Gmail's new look, and we've been working this summer to make even more updates and improvements.
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