新的支付方式如快速响应码也变得流行起来。
New payment methods such as quick response codes have become popular too.
地铁乘客可通过智能手机扫描商品条码，即商品的快速响应码进行购物，随后，所购商品就会被送到乘客家中。
Passengers "shop" by scanning QR - Quick Response - codes of the items they want to buy using their smart phones. These goods are later delivered to their home address.
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