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VOA慢速英语:Kids, Germs and Day Care; A Meningitis Vaccine for Africa
2010-12-15来源:和谐英语
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例句:We feel safe with a protective device in the house.
我们因为家里有了防护装置而感到安全。
2.almost ad.几乎,差不多
almost,nearly,about,approximately,around,roughly
这些副词均有“大约,差不多”之意。
almost指在程度上相差很小,差不多。
nearly与almost含义基本相同,侧重指数量、时间或空间上的接近。
about常可分almost和nearly换用,但about用于表示时间、数量的“大约”时,实际数量可能多也可能少。
approximately多用于书面语,指精确度接近某个标准以致误差可忽略不计。
around多用于非正式场合,常见于美国英语。
roughly指按精略估计,常代替about。
3.launch vi.投入;开始;着手进行
例句:They will launch on the production of passenger cars next month.
他们将于下个月开始生产客车。
4.outbreak n.(暴力、疾病等坏事的)爆发,突然发生
例句:An outbreak of typhoid followed.
继而爆发了伤寒。
At the outbreak of the war he lived in London.
战争爆发时他住在伦敦。
5.infection n.〈医〉传染, 感染
例句:White blood cells fight infection.
白血球抵抗感染。
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