单词：desecraters
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What makes science really fun is when you get to do things yourself, so today were going to be making moon craters. 科学真正变得有趣的时刻就是当你亲自实践的时候，那么今天，让我们来一起制作月球陨石坑吧！ They
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[00:00.62]UNIT 3 [00:07.67]Expansion 3 [00:12.97]Exercise 2 [00:15.15]My name is Kevin. [00:17.00]I am from New Zealand. [00:19.24]Here is some information about my country. [00:23.44]New Zealand is in the South Pacific Ocean [00:27.25]about 1,000 mi
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Twelve men have walked on the moon. And now you can, too. Virtually, that is. Because planetary researchers are enlisting everyday citizens in scientific exploration of the surface of the moon. At the Web site moonzoo.org, you can check out new high-
Scientific American(五)月
By Deborah Block Little Rock, Arkansas 24 September 2007 Fifty years ago this month, a high school in the U.S. southern city of Little Rock, Arkansas became a crucial battleground in the struggle for civil rights. Despite prejudice and hostility from
2007年VOA标准英语（九月）
李华和Larry在公园散步。最近全球性的经济衰退，让Larry忧心忡忡。今天我们要学两个常用语： do-or-die和 to crater. LL: Well, Li Hua, I'm glad to hear that you are enjoying your job. But I can't help worrying about th
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As the moon pulls away it will put an end 随着月球日渐远离 to one of nature's most glorious spectacles; 自然界中最壮丽的奇景也将画下句点 a total solar eclipse. 那就是日全食 The moon is 400 times smaller than the sun. 月球
神秘的月球