severe近义词

是serious

adj. 严肃的，严重的认真的庄重的危急的

The plague this time is very serious.

这次的瘟疫十分严重。

The consequences could be serious.

后果可能是严重的。

I regard this as a serious matter.

我认为这是一件重要的事情。

The strike caused serious disruptions.

罢工造成了严重的混乱。

Smoking is a serious danger to health.

吸烟严重危害健康。