Chen is very strict and serious.

陈非常严格和认真。

youdao

In a bid to wrestle with the serious problem of school bullying, schools should impose strict punishments upon those offenders.

为了解决严重的学校霸凌问题，学校应对那些犯事者施以严厉的惩罚。

youdao

He had strict orders to refuse the prince nothing, yet he remembered the prophecy, and felt that this was a serious matter.

因为有“不得拒绝王子”的严格命令，但又想到仙女们的预言，他觉得这是一个严肃的问题。

youdao

Several more serious, but similarly spurious objections maintain that libertarians, strict constitutionalists and others are labeled heartless.

FORBES: Answering The Critics Of Limited Government