rip off宰人，坑人
The price is a rip off,so i never buy anything from that store.
coupon优惠券
You can collect points from the soda bottles and use them to get discount coupons.
free shipping包邮
Many stores offer free shipping if you spend a certain amount.
return policy 退货政策
Not all the shops offer the free return shipping so you have to know a retailer's return policy befor buying their products.
loyalty program会员计划
If you join our loyalty program,you could earn some money back on your purchases.
shopping cart购物车
special deals特价商品
price difference价差
There's often a price difference between an online store and a physical store.
2016.12.10
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