make a killing
赚大钱
口语·表达赚取巨额利润
英文释义
to make a large or excessive profit; to be extremely successful or fortunate in a financial or business venture
例句
She made a killing in the stock market last year and retired early.
典故来源
源自狩猎或战争术语‘killing’指大量猎杀，后转喻商业上大获成功。