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最佳答案:I'm sorry I had not helped even a bit.抱歉一点都没帮上.I'm sorry I had not helped.很抱歉没帮上
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最佳答案:2毛钱:20 cents0.2,O ponit two(常常用字母O来代替0,这样说起来方便,而且不会混淆),Zero point two