单词：reference counter technique
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Transcript This is Scientific American's 60-Second Science, I am Cynthia Graber.This will just take a minute. Physicists at the Brookhaven National Laboratory have been able to send information ahead of particle beams racing at nearly the speed of li
Scientific American(二)月
爸爸和阿美一起去图书馆借书。阿美去找一些参考书、报纸和周刊，两人约好两小时后在借书处见面。阿美能如愿借到想要的书刊吗? Listen Read Learn May: I'm going to look for some reference books, newspapers and periodicals. Can we meet at the counter in 2 hour
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爸爸和阿美一起去图书馆借书。阿美去找一些参考书、报纸和周刊，两人约好两小时后在借书处见面。阿美能如愿借到想要的书刊吗? May: I'm going to look for some reference books, newspapers and periodical
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If you are like many language students, you might have a problem with procrastination. Perhaps you are slow to do homework or study for a test. Maybe you do not like to study or you become distracted while studying. Whatever the case may be, learning
2017年VOA慢速英语(六)月
By Carol Pearson Washington 08 January 2008 New technology makes surgery safer, shortens recovery time and leaves no scars. Both physicians and patients are pleased with the results. VOA's Carol Pearson has more. Maria Viruet recently had her gallbla
VOA标准英语2008年（一月）
Vacationing on the island of Oahu, we were waiting in our tour bus for some stragglers to show up. A man, obviously not with our group, approached the bus and was about to board. How would our driver handle the situation, we wondered. Straight-faced,
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