==========跟单区(id, item, link, qty, price, contact) =====
求跟帖~~~
http://www.gnc.com/GNC-Womens-Ultra-Mega-Without-Iron-and-Iodine/product.jsp?productId=4033451
GNC Women's Ultra Mega Without Iron and Iodine 180
qty:2+2
http://www.gnc.com/GNC-Mega-Men/product.jsp?productId=4033434
GNC Mega Men 180
qty:2+2
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