The Chief was left speechless by this fatuous remark.主管对这句蠢话无言以对。

That is not a fatuous argument and it has to be taken seriously.那可不是愚昧的论点, 必须认真对待。

Many fatuous claims are made in election campaigns.许多昏庸自得的主张都是在竞选活动中提出来的。