单词：gyrocompasses
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单词：gyrocompasses 相关文章
Keeping Washington DC Airspace Safe Is Tall Order 保持华盛顿领空安全是艰巨的任务 WASHINGTON Being the home of all three branches of the U.S. federal government makes Washington, D.C., the prime target for those who want to make their m
VOA标准英语2015年(四月)
保持华盛顿领空安全并非易事 Being the home of all three branches of the U.S. federal government makes Washington, D.C., the prime target for those who want to make their messages and ideas heard. Unfortunately, many of them choose to deli
VOA双语新闻 2015年4月
2、有些名词为自然复数名词，即只有复数的形式，例如： trousers（裤子）glasses（眼镜）scales（天平）tongs（夹子）binoculars（双筒望远镜） pincers（手钳）compasses（圆规）pants（裤子）crossroads（
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AMERICAN MOSAIC - Are You Ready for Gyrotonics?By Dana Demange and Nancy Steinbach Broadcast: Friday, February 24, 2006 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Special English. (MUSIC) I'm Do
2006年慢速英语（二）月
[00:01.56]Gunpowder [00:03.47]Gunpowder was invented by the Chinese [00:05.73]in the eighth century AD. [00:08.28]Early Chinese scientists discovered [00:10.64]that they could make an explosive substance [00:12.76]by mixing sulphur,charcoal and saltp
北师大版高中英语模块7(选修)
By calculating how old the rocks are where we find these ancient compasses, we can figure out how long ago the magnetized parts were locked in. That tells us which direction was magnetic north tens of thousands of years ago. Surprisingly, its not alw
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