QR code stands for quick response, a reference to how speedily the data they contain can be decoded.

QR是快速反应的意思，意指代码中的数据能够迅速解码。

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Passengers 'shop' by scanning QR - Quick Response - codes of the items they want to buy using their . These goods are later delivered to their home address.

乘客们只需用 智能手机 扫描他们所购买商品的快速反应码就可以轻松购物，这些商品不久就会送到家门口。

youdao

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.

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。

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Especially when it comes to security breaches done through fake quick response codes, or QR codes (crossword puzzle looking bar code scan-able by some smart phones), the iPhone is a lot safer, he says.

FORBES: Is The iPhone Safer Than Google's Android?

As well as free wi-fi, it said the money would also fund signs with Quick Response (QR) codes which visitors would be able to scan on their smart phone to be directed to events and offers in the area.

BBC: Mansfield residents and businesses to chip in for wi-fi