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VOA慢速英语:Volunteers Get Taste of Mars in Hawaii
2015-03-18来源:VOA
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词汇讲解:
1. explore vi.勘查, 探测
例句:He was on an expedition to explore the Antarctic.
他参加探险队远征南极。
2. isolate vt.使隔离,使孤立
例句:The white people are unable to isolate the black.
白人不能孤立黑人。
3. visible adj.看得见的; 明显的
例句:In other words, it must be visible to manipulate it.
换句话说,必须是可见的,人们才能操作。
4. opportunity n.机会; 适当的时机良机
例句:He muckrakes at every opportunity.
他不放过揭发贪污的任何机会。
5. appeal vi.(迫切)要求; 有吸引力; 求助(于); 提请注意
例句:They had no one to appeal to.
他们没有人可恳求 [求助无门] 。
6. challenge vt.质疑; 向…挑战
例句:Here are things to challenge you and your friends.
这是对你和你的朋友们的挑战。
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