If a user clicks his "exclamation" icon, there's a slim popout for Facebook notifications.

如果用户点击感叹号，可以看到弹出一个Facebook通知窗口。

youdao

If a user clicks his "exclamation" icon, there's a slim popout for Facebook notifications.

如果用户点击感叹号，可以看到弹出一个Facebook通知窗口。

youdao