===============跟单区，id, item,qty,link,price,contact============没有电话不下单哈，可以站短
数量就是买一送一以后的数量。
跟团 :)
item:GNC Calcium Plus 1000 with Magnesium & Vitamin D
qty: 4
link:http://www.gnc.com/product/index.jsp?productId=2779385
price:2 for USD19.99
contact:98595831
qty: 4
link:http://www.gnc.com/product/index.jsp?productId=2779385
price:2 for USD19.99
contact:98595831
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