==========跟单区(id, item, link, qty, price, contact)， 越线直接忽略，不下单====必须给电话，可以站短，没有电话的直接忽视
并且希望注明价格浮动范围，即超过多少钱就不要了
跟单
Item:Green Sprouts Warming Plate
Link:http://www.amazon.com/green-sprouts-Warming-Plate-Sage/dp/B002F9MUX4/ref=sr_1_3?s=baby-products&ie=UTF8&qid=1380550422&sr=1-3
Qty: 1
Price: 7.99
Link:http://www.amazon.com/green-sprouts-Warming-Plate-Sage/dp/B002F9MUX4/ref=sr_1_3?s=baby-products&ie=UTF8&qid=1380550422&sr=1-3
Qty: 1
Price: 7.99
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