You're an ingrate. - No, wait, okay.

你真是忘恩负义。 -等等。

Whenever you mention the word " Mommy, " they turn into sniveling ingrates.

你们只要一提起“妈妈”这个词，他们就变成了一群哀嚎的忘恩负义之人。

That ingrate can't stop hounding me for five minutes.

这忘恩负义的家伙 5分让我闲着。

To take another example, while Goncharov presents those Africans who persist in rejecting European civilization as hardheaded ingrates, he is far from considering those who do accept it wise and prudent.

再举一个例子，虽然冈察洛夫将那些坚持拒绝欧洲文明的非洲人描述为顽固的忘恩负义者，但他远非认为那些接受欧洲文明的人是明智和谨慎的。