a flat piece of plastic
shallow open receptacle for holding a person's papers, etc. in an office
She regarded the trays of plastic brooches.
出自: B. Bainbridge
The orderly..walked in carrying a tray of drinks.
出自: N. Farah
The..clash of metal trays in the canteen.
出自: P. Fitzgerald
I put..unanswered mail into a full tray.
出自: M. Marrin