there's no such thing as a free lunch

短语

天下没有白吃的午餐

别名

no free lunch there ain't no such thing as a free lunch TINSTAAFL there is no free lunch there is no such thing as a free lunch

释义与例句

phr.
  1. 1.

    Nothing is free; even things that appear free often have to be paid for in the end.

    天下没有白吃的午餐

    天下没有免费的午餐

    世上没有免费的午餐

词源

In use since the 1930s. Popularized by the American economist Milton Friedman through the title of a 1975 book, and frequently misattributed to him.

来源：wiktionary