英语自学网 发表于 2016-8-2 11:31:39

【TOEFL核心词汇】No.99 开始

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只听写例句。前面的单词不用听写。注意有一对引号。http://t1.g.hjfile.cn/listen/201212/20121219113742601153.mp3The second era was initiated in the early decades of the 20th century and might be called "the vitamin period".
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