===========跟单===========contact
item
URL
price
qty
remarks 价格浮动范围（没有备注默认任何价格都接受）
再跟单
contact：究其起司 究其领舞
item：real Techniques Core Collection Set
URL：http://www.amazon.com/real-Techniques-Core-Collection-Set/dp/B004TSFBNK/ref=sr_1_2?ie=UTF8&qid=1399009240&sr=8-2&keywords=real+techniques
price： $15.18
qty: 1
remarks 价格浮动范围<$20
item：real Techniques Core Collection Set
URL：http://www.amazon.com/real-Techniques-Core-Collection-Set/dp/B004TSFBNK/ref=sr_1_2?ie=UTF8&qid=1399009240&sr=8-2&keywords=real+techniques
price： $15.18
qty: 1
remarks 价格浮动范围<$20
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