水中养护

This is Scientific American's 60-Second Science, I'm Cynthia Graber. This'll just take a minute. Its often said we know more about the moon than we do about the depths of the ocean. There is a lot we dont know about the H2O that covers much of the pl

发表于:2018-12-24 / 阅读(39) / 评论(0) 分类 Scientific American(五)月

Its often said we know more about the moon than we do about the depths of the ocean. There is a lot we dont know about the H2O that covers much of the planet. Now were getting closer, though, to an important understanding: Just how deep are the ocean

发表于:2019-01-02 / 阅读(67) / 评论(0) 分类 60秒科学

Brazilian starlet on Juventus radar RIO DE JANEIRO, Oct. 19 (Xinhua) -- Italian Serie A giants Juventus are reportedly interested in signing Brazilian starlet Bruno Mendes. The 18-year-old striker has shot to prominence with three goals in his first

发表于:2019-01-07 / 阅读(74) / 评论(0) 分类 英语新闻

US Company Developing Space-Based Plane Tracking 美国公司开发太空基地飞机追踪技术 LEESBURG, VA One of the reasons Malaysia Airlines flight MH370 hasn't been found is because the plane couldn't be tracked continuously over the ocean. I

发表于:2019-01-14 / 阅读(44) / 评论(0) 分类 VOA标准英语2015年(八月)

By Al Pessin Prague 23 October 2007 U.S. Defense Secretary Robert Gates says the United States might be willing to postpone activation of missile-defense sites planned for Poland and the Czech Republic until there is proof Iran has missiles that coul

发表于:2019-02-03 / 阅读(154) / 评论(0) 分类 2007年VOA常速英语(十月)

今天我们要学的词是shore up。 To shore up, 是支持,支撑的意思。 The new recruit will help shore up the team's defense, 这名新来的球员会增加球队的防守能力。 The International Monetary Fund agreed to a $3 billion lo

发表于:2019-02-18 / 阅读(61) / 评论(0) 分类 英语单词荟萃