==========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
Philips HP6390 Precision Perfect Trimmer
price:9.99(超过这个价钱就不要)
qty:1
link: http://www.amazon.com/Philips-HP6390-Precision-Perfect-Trimmer/dp/B0072BA5MS/ref=sr_1_9?s=hpc&ie=UTF8&qid=1393843526&sr=1-9&keywords=philips+trimmer
price:9.99(超过这个价钱就不要)
qty:1
link: http://www.amazon.com/Philips-HP6390-Precision-Perfect-Trimmer/dp/B0072BA5MS/ref=sr_1_9?s=hpc&ie=UTF8&qid=1393843526&sr=1-9&keywords=philips+trimmer
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