==========跟单区(id, item, link, qty, price, contact) ====数量写最后要的数量即可，需要是4的倍数。
需要凑单的请在闲聊区召唤
跟单.没有买2送2就不要哈,谢谢
1、
Name: GNC Chewable Calcium Plus® with Vitamin D-3
Link: http://www.gnc.com/product/index.jsp?productId=3161901
Price: 13.99
Quantity : 2*2
Name: GNC Chewable Calcium Plus® with Vitamin D-3
Link: http://www.gnc.com/product/index.jsp?productId=3161901
Price: 13.99
Quantity : 2*2
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