i bought this book --- one yuan a copy.填at

问题描述:

i bought this book ___ one yuan a copy.填at
i bought this book ___ fifty cents.填for
1个回答 分类:英语 2014-10-10

问题解答:

我来补答
at 表示以XX的单价购买
for 表示一共出了多少钱
 
 
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