This is happening at grocery stores that have rolled out electronic shelf labels where the store can adjust prices instantly.

杂货店里就能看到这种现象，他们已经推出了电子货架标签，商店可以随时调整价格。

Grocery store chain Kroger, for example, is set to work with Microsoft to put facial recognition cameras in those electronic shelf labels.

例如，连锁杂货店克罗格将与微软合作在这些电子货架标签上安装面部识别摄像头。