illness既是可數名詞，又是不可數名詞。1.患病(狀態)、身體不適[U]，此時不可數，例：During his illness,John stayed indoors.約翰在生病期間足不出戶。2.(某種)疾病[C]，此時可數。

illness的例句

His illness diminished his health.疾病侵蝕了他的健康。

He will pull through his illness soon.他很快就會恢復健康的。

Worry and illness had made him prematurely old.他心事重重、疾病纏身，落得個未老先衰。

His illness is owing to excessive work.

他由于過度工作而病了。

1、Attitudes to mental illness have shifted in recent years.

最幾年對精神病的態度已有所改變。

2、He boasts of dodging military service by feigning illness.

他炫耀自己通過裝病來逃避服兵役。

3、She was determined not to let the illness take hold again.

她決心不讓疾病再次擊垮自己。