U 气喘；哮喘 medical condition of the chest that makes breathing difficult
词汇搭配
～+名词
～ attack哮喘发作
句型例句
My friend has asthma.我的朋友患有哮喘。 Dust makes my asthma worse.灰尘使我的哮喘加重。 "Auntie told me not to run," he explained, "on account of my asthma." “阿姨叫我不要跑，”他解释道，“因为我有气喘病。”