服务员用托盘端来了我们的饮料。

The waiter brought our drinks on a ___tray.

光盘驱动器托盘卡住了，光盘取不出来。

The CD drive's ___tray is stuck and won't eject the disc.

请把签完的文件放进文件托盘里。

Please put the signed documents in the ___tray.