The dust in the air caused his severe attack of asthma.

空气中的灰尘导致他哮喘严重发作。

Her asthma is hereditary.

她的哮喘是遗传的。

Asthma is a chronic disease that is difficult to cure.

哮喘是一种很难治愈的慢性病。

Asthma is a lung condition which causes difficulty in breathing.

哮喘是一种导致呼吸困难的肺部疾病

Pollution can aggravate asthma.

污染会使气喘加重。

She suffers from bronchial asthma.

她患有支气管哮喘。

He suffers from asthma.

他患有哮喘。

It had brought on an attack of asthma.

这引起了一次哮喘发作。

The gene for asthma has been identified.

哮喘病的基因已被识别。