there's no such thing as a free lunch

口语·书面·提醒警惕隐藏成本
例句
Be careful with that offer—there's no such thing as a free lunch.
典故来源 源自20世纪美国酒吧文化，免费午餐常伴随酒水消费，后由经济学家弗里德曼推广，指任何好处都有代价。

📖 习语词汇解析

习语中的关键英语词汇

thing [θiŋ]
n. 事件，形势;东西，事物;家伙;事业;
free [fri]
adj. 自由的;免费的;免税的;空闲的; adv. 免费地;自由地，无拘束地;一帆风顺地; vt. 免除;释放;使自由;解救;
lunch [lʌntʃ]
n. 午餐; vt.& vi. 吃午餐;供给午餐;

🔤 同首字母习语

that sucks
那很糟糕
the squeaky wheel gets the grease
喧哗的轮子得到了油脂
there are clouds on the horizon
有不好的迹象或问题即将发生
the straw that broke the camel's back
that makes two of us
我也是一个（同样的情况或意见）
the weed of crime bears bitter fruit
犯罪的后果严重且令人痛苦
take root
扎根，生根，成为一部分，建立根基
think twice
三思而后行
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