慢速英语:US Health Officials: Zika 'Scarier Than We Thought'

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1. Infectious adj.传染的; 有传染性的; 易传染的
例句：These viruses affect children and are highly infectious.
这些病毒会侵袭儿童，而且具有很强的传染性。

2. paralyze vt. 使瘫痪，使麻痹
例句：The soviet Union believes that it can demoralize Western Europe and paralyze us.
苏联相信它能使西欧丧失斗志，麻痹我们。

3. infect vt.使受影响，感染; 传染
例句：I didn't pay any attention to it Because I never infect.
我对这事毫不注意，因为我从来未受感染。

4. confirm vt.证实; [法] 确认，批准
例句：I just want to confirm that the arrangements have been made.
我要确认所有计划都安排好了。

5. repel vt.击退; 抵制; 使厌恶
例句：The negative poles of two magnets will repel each other.
两块磁铁的负极相互排斥。