1、 He stayed at home because of sickness yesterday.
他昨天因为生病待在了家里。(重点:不可数名词,由形容词sick转化而来,表“疾病、生病”)
来源:【中考难度例句】秒词邦编辑整理
2、 So weak does the body's immune system become that the person often becomes very ill from usually mild sicknesses.
身体的免疫系统变得如此脆弱,以至于人们经常因为轻微的疾病而变得非常虚弱。
来源:【高考难度例句】秒词邦编辑整理