He accepted the tray and laid it on the desk.

他接过盘子并把它放在桌上。

youdao

Put all papers on your desk in your Inbox tray.

将所有的文件放在你办公桌的收件箱文件盘里。

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When you encounter paper that does not require action or filing and you are uncertain what to do with it, place it in a tray or file that is off the desk. Label that file "Possibilities."

当碰到那些不要行动，保存或者干脆你不知道要怎样处理的文件时，把他们放在远离桌子的盘子或者文件夹里，贴上“可能有用”的标签。

youdao

By placing your tablet or computer on a tray table or desk propped up at an angle toward eye level may ease neck strain and discomfort.

FORBES: Five Tips to Reduce Neck and Shoulder Pain When Using a Tablet or Computer

When used on a desk, table, or airplane seat tray, with the kickstand holding the screen upright and the keyboard cover with movable keys, the Pro is a serviceable laptop, especially since, unlike on an iPad or Android tablet, you can use full-fledged PC programs.

WSJ: Review of Microsoft's Surface Pro: Hefty Tablet Is a Laptop Lightweight