卧底特工进入大楼，完全意识到这可能是一个陷阱。

The undercover agents entered the building, fully aware it could be a ___trap.

不要掉入无偿加班的陷阱。

Don't fall into the ___trap of working overtime without extra pay.

聪明的侦探设下了一个陷阱来抓捕真正的罪犯。

The clever detective laid a ___trap to catch the real criminal.