kill two birds with one stone
一石二鸟
不过此句话可能含有贬义
原文:
一举两得
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译文:
Kill two birds with one stone
one shot,two preys.
一举两得
1.to kill two birds with one stone; to attain two objectives or gain two advantages by a single move
1.kill two birds with one stone
2.serve two ends