And on macOS, NSDocument includes built-in support for file sharing right within your apps.

在 macOS 上 NSDocument 包含了对在你的应用程序内部直接分享文件的内部支持。

It's been exactly one year since U.S. authority shut down Megaupload, one of the world's largest file sharing websites.

Megaupload是世界上最大的文件分享网站之一，现在距离其被美国当局关闭正好过去一年的时间。