Barefaced liars lie easily and often. They lie through their teeth, we like to say.

厚颜无耻的撒谎者会经常、轻易地撒谎。我们一般会说，他们谎话连篇。

So Rob is a 'barefaced liar' because he's obviously telling a lie without any embarrassment.

所以，罗布是一个“无耻的骗子”，因为很明显他毫不尴尬地说了谎。

John was at the pub last night bragging about his goal-scoring again — but we all know he's a barefaced liar.

约翰昨天又在酒吧吹嘘他的进球得分了，不过我们都知道他是无耻的骗子。