in tray, in box

例句：
(英) There is one in tray on every desk in our office.
(美) There is one in box on every desk in our office.

解釋：
(英) in tray：(書桌或辦公桌上用來存放待處理之文件和信函的) 收文藍 (收文盤或收文盒)。
(美) in box：(書桌或辦公桌上用來存放待處理之文件和信函的) 收文藍 (收文盤或收文盒)。

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