他假装合作，实际上是为了设局陷害我们。

He pretended to cooperate but actually ___trapped us into a trap.

他以为这是一个简单的游戏，没想到却是朋友设计的恶作剧陷阱。

He thought it was a simple game, but it turned out to be a clever ___trick set up by his friends.