The barcoded book is stored in a tray, which also contains a barcode and the trays are placed on the shelves, which are again barcoded.
有条形码的书籍存放在托盘，托盘也包含条形码，放置在搁架上，再编条形码。
Soon I was sitting comfortably with a tray full of food before me and a book at my side.
不久我就舒服地坐下，前面有一盘丰盛的食品，旁边有一本书。
Soon I was sitting comfortably with a tray full of food before me and a book at my side.
不久我就舒服地坐下，前面有一盘丰盛的食品，旁边有一本书。
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