paragraph 3
①句 youngster n. 年青人
adult n.成年人
the elderly 老年人 birth --->growth--->death
request n/v. 请求 求助
letter of request n/v 申请信
put and end to = stop
写作: effective measures should be token to put and end to such an upsetting tread
我们应该采取有效措施来停止这一令人沮丧的趋势
②句 diagnose v. 诊断
diagnosis n. 诊断 <------>misdiagnosis 谬诊
Paragraph 3
1句: youngster n. 青年人
adult n.成年人
the elderly 老年人
birth- growth- death
Request n/v 请求;帮助
letter of request n/v申请信
亲,我打字快,可是看不懂啊。