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VOA慢速英语:Understanding How Tornadoes Work
2011-04-20来源:VOA
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词汇讲解:
1. tornadoe n. 龙卷风
例句:A tornado whirled into the town last week.
龙卷风上周袭击了这座城市。
2. observe v. 观察,研究
例句:It will observe Jupiter and its moons for two years.
它将对木星及其卫星进行为期两年的观测。
3. sighting n. 观察,瞄准,视线,看见
例句:The ancient Egyptians used levels and calibrated rods for sighting over long distances .
古埃及人使用水平仪与量尺做长距观测。
4. rip v. 扯破,撕坏
例句:He ripped the letter and read it.
他撕开信便读起来。
5. life-or-death adj. 生死攸关的
例句:In this life-or-death climax, he showed himself a terrible personality.
在这个生死关头,他表现出一种令人惧怕的性格。
6. outbreak n. 爆发,突然发生
例句:At the outbreak of the war he lived in London.
战争爆发时他住在伦敦。
7. humidity n. 湿度,湿气
例句:The relative humidity is over 85%.
相对湿度在85%以上。
8. northeasterly adj. 向东北的,来自东北的
例句:The current had a northeasterly set.
水朝东北方流去。
9. severity n. 严重,剧烈
例句:The disease ranges widely in severity.
这种病的严重程度可以很不同。
10. rate vt. 定级
例句:They rated the new film.
他们给那部新片定了级。
11. footage n. 电影片段,镜头
例句:The film contained some old newsreel footage.
这部影片中有些旧新闻片的镜头。
12. participant n. 参与者,参加者
例句:She is an active participant in this activity.
她积极参与这项活动。
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