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VOA慢速英语:The Long Search for a Malaria Vaccine
2011-12-08来源:VOA
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词汇讲解:
1. mosquito n. 蚊子
例句:Mosquitoes carry disease.
蚊子会传播疾病。
2. vaccines 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. launch vt. 使(船)下水;发动; 发出; 发射
例句:They launched a new passenger liner.
他们使一艘新的客轮下水。
4. potential n. 潜力, 潜势, 可能性
例句:This new invention has an enormous sales potential.
这项新发明有巨大的销售潜力。
5. narrow adj.狭窄的; 狭隘的;勉强的; 险胜的
例句:The bridge is too narrow for two cars to pass.
这桥太窄, 并排通不过两辆车。
6. weaken v. (使)削弱 , (使)变弱
例句:She weakened as the illness grew worse.
由于病情恶化, 她变得更虚弱了。
7. breakthrough n. 突破点, 突破性进展, 重要的新发现
例句:Scientists have made a breakthrough in their treatment of that disease.
科学家在治疗那种疾病方面已有突破。
8. isolate vt. 使隔离, 使孤立, 使脱离
例句:A chemist can isolate the oxygen from the hydrogen in water.
化学家可以把水中的氢和氧分离开来。
9. simulate vt. 模仿, 模拟
例句:A sheet of metal was shaken to simulate the noise of thunder.
猛力抖动金属片以模仿雷声。
10. approve vt.批准, 通过
例句:The minister approved the building plan.
部长批准了该建筑计划。
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