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VOA慢速英语:UN Says Food Production Must Rise; How 'Fertilizer Trees' Could Help
2011-11-29来源:VOA
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词汇讲解:
1. estimate v. 估计; 评价, 评估
例句:We estimate the cost to be five thousand dollars.
我们估计费用为5000美元。
2. existing adj. 存在的;现存的;目前的
例句:Any new building must be fitted into the existing appearance of the city.
任何建筑物都必须与本城目前的景观相协调。
3. degrade vt.使降级, 使降低身份;使丢脸; 使退化,降解;分解
例句:It was very degrading to be punished in front of the whole class.
在全班同学面前受罚是非常丢脸的。
4. threat n.威胁, 恐吓;可能造成威胁的人[事, 想法]
例句:The use of nuclear weapons is a horrible threat to the species.
核武器对人类是一个严重威胁。
5. harm vt.(使)受到损害, 伤害
例句:Smoking harms our health.
吸烟有害健康。
6. fix vt. 使固定;缚紧,钉牢;牢记
例句:Her image was fixed in his mind.
她的形象深深印在他的脑海里。
7. atmosphere n. 大气, 大气层,大气圈
例句:Changes in the climate are due to pollution of the atmosphere.
由于对大气层的污染而造成了气候变化。
8. identify vt. 认出, 识别
例句:His hoarse voice was quickly identified.
他那沙哑的嗓音让人一听就知道是他。
9. diagnose vt. 诊断(疾病);判断(问题的原因)
例句:The doctor diagnosed my illness as a rare skin disease.
医生诊断我的病为罕见的皮肤病。
10. spread v. (使)传播, (使)散布
例句:His name spreads all over the world.
他成了海内外尽人皆知的名人。
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