not worth the candle
得不偿失，代价不值得
口语·表示不值得
英文释义
not worth the effort or cost involved
例句
Driving two hours for a 10-minute meeting is not worth the candle.
典故来源
源自17世纪，蜡烛曾是照明工具，若收益不足以抵蜡烛成本，则得不偿失。