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Earlier this week, there was a cave-in at a tunnel in Washington state. No one was hurt but officials scrambled to fix that quickly because it's part of the Hanford Facility, a nuclear waste site. The collapsed tunnel was covered in eight feet of soi

发表于:2018-12-02 / 阅读(87) / 评论(0) 分类 CNN美国有线新闻2017年6月

VOA标准英语2014--2014年,太空标准检查技术遭遇挫折

2014 Year of Space Technology Benchmarks, Setbacks 2014年,太空标准检查技术遭遇挫折 WASHINGTON Space technology this year reached some important goals, culminating with the spectacular landing of a space probe on a comet, millions of kilo

发表于:2018-12-08 / 阅读(103) / 评论(0) 分类 VOA标准英语2014年(十二月)
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