not worth the candle
得不償失，代價不值得
口語·表示不值得
英文釋義
not worth the effort or cost involved
例句
Driving two hours for a 10-minute meeting is not worth the candle.
典故來源
源自17世紀，蠟燭曾是照明工具，若收益不足以抵蠟燭成本，則得不償失。