These particulates are small enough to penetrate human lung tissue, causing severe health problems.

这些颗粒足够小，能进入人的肺组织，引发严重的健康问题。

youdao

He had previously experienced some severe health problems, and he began to wonder "what would happen to me in that situation."

由于先前遭遇过几次大病，开始思考“那种情况下会发生什么”这一问题。

youdao

At the root of the problem is China 's heavy reliance on coal, which pollutes cities and causes severe health problems for urban dwellers.

问题的根源在于中国对于煤炭的深度依赖，使用煤炭污染城市环境，给城市居民带来了很严重的健康问题。

youdao

The early onset of obesity may bring severe health problems, such as kidney failure, by the time today's children reach adulthood.

ECONOMIST: Obesity may threaten life expectancy. Or maybe not

Professor Sean Duggan, chief executive of the Centre for Mental Health, said that secure mental health services had a vital role to play in rehabilitating offenders with severe mental health problems.

BBC: Patients spend 'too long in secure mental health units'

Many people with severe mental health problems miss out on the care they should receive for physical illnesses, researchers say.

BBC: Mental health medication concern