<口>to be done for

• 彻底完蛋

  completely done for

• 他们的交情就此完蛋了。

  Their relationship broke down irrevocably.

• 骗子们迟早要完蛋。

  Cheats will meet their end sooner or later.

• 他马上就要完蛋了。

  He is doomed.

• 我的事情完蛋了。

  My task is ruined.