look a gift horse in the mouth|gift horse|horse|lo Thành ngữ, tục ngữ
look a gift horse in the mouth|gift horse|horse|lo
To complain if a gift is not perfect.

A proverb. Usually used with a negative.
John gave Joe a baseball but Joe complained that the ball was old. His father told him not to look a gift horse in the mouth.look a allowance horse in the mouth|gift horse|horse|lo
To accuse if a allowance is not perfect.

A proverb. Usually acclimated with a negative.
John gave Joe a baseball but Joe complained that the brawl was old. His ancestor told him not to attending a allowance horse in the mouth.