He's suffering from severe mental disorder.

他患有严重的精神病。

youdao

To be fair, this was a man suffering from severe sleep deprivation.

公平地讲，这个男人正遭受着严重的睡眠不足。

youdao

You can also submerge your head if you are suffering from severe headache.

如果你头疼得厉害，还可以把头也没入水中。

youdao

In other words, a person who is suffering from the effects of severe cold may seem dead,but still be alive.

VOA: special.2009.12.30

Mental health experts say therapy can often help patients suffering from depression, severe stress or other conditions.

VOA: special.2010.04.13

"Just imagine,a severe pandemic coming at such a fragile time in a world where there are many people suffering from chronic diseases like heart disease, lung disease,including asthma, cancers,with many more people suffering from HIV, obesity and the list goes on,".

VOA: standard.2009.12.29

Katy Norris was suffering from severe depression when she smothered baby Leo in April 2010.

BBC: Baby death could have been prevented, says report

An estimated 127, 300 children under age 5 are already suffering from severe acute malnutrition, UNICEF says.

CNN: STORY HIGHLIGHTS

After suffering from severe stomach pains, he was sent to have a CT scan at Ninewells Hospital.

BBC: Ninewells Hospital to use new keyhole surgery technique