单词：finite-pole-width magnet
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When you sail for London you have to set your watch ahead each night when you go to bed, 如果你乘船去伦敦，每天晚上睡觉前你必须把手表调快一点， so that when you reach London your watch will be five hours ahead of the time y
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EDUCATION REPORT -August 8, 2002: Magnet Schools By Jerilyn Watson This is the VOA Special English Education Report. Many American students attend public schools called magnet schools. They are called
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Magnet 磁铁 Magnets are very interesting objects. 磁铁是非常有趣的物体。 Each has a positive pole and a negative pole. 每个磁铁都有正负极。 One for each end. 磁铁两端各为一极。 Similar poles push each other away. 磁铁同
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