949电影网出租车剧情介绍:

过度劳累容易引起疾病。
undue /??n?dju?; ??n?du?/ adj. 过度的；过分的
exertion /?ɡ?z???n/ n. 努力；费力
◆ fall apart 崩溃；瓦解
◆ tend to 易于；趋向于
感染上疾病 contract a disease
A：Jack hasn't taken the class for a week. What's happened?
杰克一周没来上课了。出什么事了？
B：He's contracted a heavy disease.
他感染上了严重的疾病。
contract /?k?ntr?kt/ v. 感染；签订合同
把疾病传染给…… communicate a disease to…
A：Rats often carry very nasty diseases.
老鼠常常会传播严重的疾病。
B：Sometimes they communicate diseases to people.