文件盒的英文：
tray

express freight trai
特快货运列车

Will you hand me the ash tray, please.
请把烟灰缸递给我。

Letters were piled high in the tray on his desk.
他办公桌上的文件盒里有很多信。

Letters are piled high in the tray on his desk
他办公桌上的文件盘里有很多信

She tipped the tray and all the cups slid on to the floor
她托歪了盘子，所以杯子都滑到地上了。