barcode

这张卡上有一个条形码。

There is a ___barcode on this card.

超市的商品上都贴有条形码以便快速结账。

Every product in the supermarket has a ___barcode for quick checkout.

超市收银系统通过扫描条形码来快速识别商品。

The supermarket checkout system scans the ___barcode to quickly identify products.