二维码
word B2- 2D barcode; matrix code
- (esp.) QR code
Its characters
From the library
骑共享单车很简单：先打开手机上的软件，再扫一下车上的二维码，锁就开了。
你只需要打开手机软件，扫描一下二维码，就能轻松完成支付。
每张桌子的角落里，都贴着一个用来点餐的二维码。
Learn 二维码 in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.