牛津电影里 100%
一石二鸟;一箭双雕;一举两得
to achieve two things at the same time with one action
... there’s another little job I want doing at the same time. You know, kill two birds with one stone.
We were supposed to kill two birds with one stone.
释义来自《牛津高阶英汉双解词典》第 9 版