二维码 (èr wéi mǎ): บาร์โค้ด 2 มิติ

When checking out at the supermarket, the cashier asked me to show the QR code on my phone; with one scan I could pay.

Our restaurant's menu has a QR code printed on it; customers can scan it with WeChat to see all the dishes and prices.

Before entering the subway station, staff reminded passengers to open their health code QR code in advance so they could pass the check quickly.

After buying a movie ticket online, I received a text message with a QR code; I could scan it at the cinema entrance to collect the ticket.

The teacher sent the QR code for the study materials to the class group; classmates could scan it with their phones to download them.