kill two birds with one stone 一石二鸟，一箭双雕

This way, You can kill two birds with one stone. What a plan!

这样你就能一箭双雕了，多么好的计划呀。

Mike wants to kill two birds with one stone? No way. I won't let it happen.

麦克想一箭双雕？没门！我不会让它发生的！