A good debater recognizes that resorting to a tu quoque only weakens one's position in the argument.

一个好的辩论家认识到对对方说“你也一样”这样的语言会减弱自己在辩论中的立场。

youdao

Definitions : Like the appeal to authority and ad populum fallacies, the ad hominem ("against the person") and tu quoque ("you, too!")

定义：诉诸权威或者群众是论证中的谬误，指向个人（ad hominem 也就是英文 against the person）以及“你也如此”（tu quoque 也就是英文 you, too!）

youdao

In a tu quoque argument, the arguer points out that the opponent has actually done the thing he or she is arguing against, and so the opponent's argument shouldn't be listened to.

在你也如此的论证中，论者指出对方实际上做过他/她反对的事情，因此对方的论证不能听信。

youdao