"他被人设计了"翻译成英语

He's been trapped.

He has been set up.

e.g.
I'm not to blame, I've been set up.
我没有过错，是人家设计陷害我。

一楼正解，be set up是被算计的意思

he was set up.

三楼的也可以，被陷害了