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https://www.reddit.com/r/Costco/comments/syejso/why_does_costco_scan_barcodes_on_the_carts_during/

所有跟帖： 

• it's to show that the bottom of the cart was checked -瓜籽- ♂ (0 bytes) () 07/18/2025 postreply 10:55:37

• and doesn't have anything down there that was overlooked. -瓜籽- ♂ (0 bytes) () 07/18/2025 postreply 10:56:01

• 謝謝幫查。我以前也沒注意，今天才發現的。 -烹小閑- ♀ (0 bytes) () 07/18/2025 postreply 11:33:01