忘恩

She was saddened by her son's ingratitude.

儿子的负义伤了她的心。

I can’t believe he didn’t even say thank you. How ungrateful can you get?

他甚至连谢谢都没说，真让人难以相信。一个人怎可能负义呢？

When you say such nasty things about the organization, you’re biting the hand that feeds you.

你说组的些骯脏的话，负义。

He is not the first politician to kick down the ladder by which he has risen to exalted heights.

他不第一个被抬上高位便负义的政客。