QR code是什么的缩写？

QR code是quick response code（“二维码”）的缩写

(1) response “反应，回应”

(2) quick response code “二维码”

英语解释为a square pattern of small black and white squares, which is put on a product, advertisement etc. It contains information that can be read by a mobile phone or scanner。

(3) scan a QR code “扫二维码”

例

We can use QR codes for paying bills.

我们可以使用二维码结账。