be ungrateful to kindness
Ungrateful, a Chinese idiom, Pinyin is f ù y ì w à ng ē n, which means to forget the kindness and benefits of others and do something sorry to others. It's from Diao Feng Yue.
The origin of Idioms
The first fold of Guan Hanqing's Diao Feng Yue in Yuan Dynasty: "one by one, one by one, one by one, they are ungrateful and ungrateful."
Idiom usage
Used as a predicate or attribute; used in condemnation. There are such things! Don't kill this ungrateful animal, be a hero in the world! Miao long left his seat in anger
be ungrateful to kindness