free lunch
US /friː lʌntʃ/
UK /friː lʌntʃ/
1.
免費的午餐, 不勞而獲的東西
something that is obtained without effort or cost, often implying that such a thing is rare or nonexistent
:
•
There's no such thing as a free lunch; everything has a cost.
沒有免費的午餐；一切都有代價。
•
He thought he could get rich quickly, but he soon learned there's no free lunch.
他以為自己可以很快致富，但他很快就明白沒有免費的午餐。