他就是个骗子——他说的话你一句都不能信。

He's such a ___liar - you can't trust a word he says.

计划奏效了：陪审团认为妻子是个恶名昭彰的说谎者，而她的丈夫则被判无罪。

The plan works: the jury thinks that the wife is a notorious ___liar and her husband is found innocent.

不要做说谎的人；永远要讲真话。

Don't be a ___liar; always tell the truth.