VOA常速英语:Millions More Children to Receive Vaccines

词汇讲解：

1. severe adj. 严重的, 剧烈的
例句：There is a severe shortage of fuel.
燃料严重短缺。

2. vaccine n. 疫苗;痘苗
例句：She takes a vaccine against influenza every fall.
她每年秋季接种流感疫苗。

3. uNPRecedented adj. 前所未有的, 无前例的
例句：The air crash caused an uNPRecedented number of deaths.
这次空难的死亡人数是空前的。

4. availability n. 可得到的东西(或人);可得性
例句：The availability of good medical care tends to vary inversely with the need for it.
优质医疗服务的提供往往与需要成反比。

5. request vt.请求, 要求
例句：Workers requested a raise in the wage.
工人们要求提高工资。

6. donor n.捐赠者,赠与者
例句：About half this amount comes from individual donors and bequests.
这笔钱大约有一半来自个人捐赠及遗赠。

7. recognize vt. 承认(事实);认清
例句：I recognized that I had made a mistake.
我认识到自己犯了一个错误。

8. bulk n. 大部分,主体,大多数
例句：The bulk of the railroad workers voted to go back to work.
大多数铁路工人投票赞成恢复工作。

9. dose n. 一场, 一次, 一回
例句：What you need is a good dose of laughter.
你需要的是大笑一场。

10. administer vt. 给予
例句：The doctor administered some medicines to his patient.
医生给了他的病人一些药。