He is prone to wild exaggeration.他经常夸夸其谈。

That's a slight exaggeration.那么说有点儿夸张了。

It is no exaggeration to say that he is a vital member of our team.毫不夸张地说, 他是我们团队里至关重要的一员。

It would be an exaggeration to call the danger urgent.把这一危险称为紧急事件就有些夸张了。