Walmart, like most major retailers, is replacing the labels on its shelves with small electronic screens, so it can change prices and offer promotions quickly and cheaply.
與其他多數大型零售商一樣,沃爾瑪(Walmart)正將貨架上的價籤換成小電子螢幕,這樣就能低成本並且快速地更改價格和進行促銷。
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