kill two birds with one stone什么意思解释？

They hope , in point of fact, to kill two birds with one stone.他们实际上是想一举两得.They hope, in fact, to kill two birds with one stone.他们实际上是想一举两得。To speed my escape, we decided to kill two birds with one stone.为了加速我的逃跑, 我们决定采取...

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