他们在那个年龄不够认真。

I agree. They aren't serious enough at that age.

youdao

高管们普遍抱怨，年轻员工虽然天资聪颖、工作认真，但他们的分析能力不够强。

A common complaint is that younger workers just don't think analytically enough, despite being intelligent and earnest.

youdao

在那个年纪他们还不够严肃认真。

They are not at that age.

youdao

在那个年纪他们还不够严肃认真。

They are not at that age.

youdao