VOA常速英语:Rotavirus Vaccine Is Safe, Study Finds

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. hospitalize vt.送…住院;使留医
例句：He broke a leg and was hospitalized for a month.
他跌断了一条腿, 要留医一个月。

4. oral adj. 口服的
例句：It is oral medicine.
那是口服药。

5. dose n. (一次)剂量, 一剂, 一份
例句：He gave me a dose of medicine for my cold.
他给我开了一剂治感冒的药。

6. investigate vt. 调查; 审查
例句：The police are investigating the murder.
警察在调查那起凶杀案件。

7. monitor vt. 监测, 检测
例句：They were monitoring the upper air to collect evidence of atomic explosions.
他们正在检测高空空气以收集原子爆炸的证据。

8. recommend vt.推荐, 介绍, 赞许某人[某事物]；劝告, 建议
例句：I recommend caution in dealing with this matter.
我建议慎重处理此事。

9. outweigh vt. 在重要性或价值方面超过
例句：Her need to save money outweighs her desire to spend it on fun.
她省钱的需要比她花钱娱乐的愿望更重要。

10. potential adj. 潜在的,可能的
例句：The dispute has scared away potential investors.
这一争端吓走了潜在的投资者。