(1)病，不健康(state of being ill;poor health)[U]：pretend～装病;be suddenly seized with～突然生病;There must be～in his family. 他家里肯定有人生病了。During his last～we only saw him twice. 在他上次生病期间我们只看过他两次。

(2)疾病(disease;sickness)[C]：contract an～得病;get over an～从病中恢复过来;a fatal/grave/major/serious/lingering/sudden～ 致命/严重/大/重/缠绵/突然的病;an incurable/undiagnosed～ 不能治愈/没有确诊的病;a mental～精神病;special diets for different kinds of～es 不同疾病所需的特殊饮食;

←ill adj

【辨异】illness与complaint、disease、trouble和sickness的区别见COMPLAINT。