只用一本书提高英语听力能力!重温经典名著双语阅读小编推荐:跟着纪录片学英语不背单词和语法,轻松学英语
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[VOA慢速] VOA慢速精精听 2012-02-21

提高英语听力能力 找对方法很重要!
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   when thousands of or even millions of people get together, what do you suppose is the biggest health concern? __ doctors and public healthy officers were most concerned about the spread of infection diseases,like ___
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