==========跟单区(id, item, link, qty, price, contact) ，注明没有8折要不要====务必注明没有8折要不要
不然的话默认有货没折也下哦
跟一个（有八折才要）
item: ALTERNA BAMBOO Smooth Pure Kendi Oil Pure Treatment Oil 1.7 fl oz
link: http://www.beauty.com/alterna-bamboo-smooth-pure-kendi-oil-pure-treatment-oil/qxp315853?catid=13006
qty: 1
price: $25.00*0.8
link: http://www.beauty.com/alterna-bamboo-smooth-pure-kendi-oil-pure-treatment-oil/qxp315853?catid=13006
qty: 1
price: $25.00*0.8
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