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问题描述:
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中国无疑已经在国际事务中起到了越来越重要的作用.(play a role)
医生们总是告诫我们说维生素药片不能取代均衡膳食.(substitute)
迄今为止,许多地区的人们仍未意识到空气污染的危害.(recognize)
他去书市买了很多特价书.(pick up)
冲入燃烧的房子里去救双胞胎姐妹的那名消防员牺牲了.(sacrifice)
答
Doutelessly,China has played a more and more important role in the international affairs.Doctors always warn us that the Vitamin pills cannot substitute balanced diet.Until now,people in many areas ha...