例句：
In fifty-two years of working he had one week of sickness.
他在52年的工作时间里曾生过1星期的病。
We strongly recommend insuring against sickness or injury.
我们强烈建议投伤病保险。
I recommend you get insurance against sickness and unemployment.
我建议你办个疾病和失业保险。
Stress is often a factor in the development of long-term sickness.
心理压力常常是形成长期病的一个因素。