a flat piece of wood, metal or plastic with raised edges, used for carrying or holding things, especially food 盘；托盘；碟 
He brought her breakfast in bed on a tray. 他把早餐用托盘给她送到床上。 She came in with a tray of drinks. 她端着一托盘饮料走进来。 a tea tray 茶盘
Extra ExamplesTopics Cooking and eatingc1He balanced the tray on his knees. 他把盘子平稳地放在膝上。 a heavily laden tray 装得满满的盘子 waiters bearing trays of champagne 端着一盘盘香槟酒的侍者们
Oxford Collocations Dictionaryadjective- breakfast
- dinner
- lunch
- …
- bear
- carry
- pick up
- …
- on a/the tray
- tray of
(often in compounds 常构成复合词 a shallow plastic box, used for various purposes （各种用途的）浅塑料盒 a seed tray (= for planting seeds in) 育苗盘 a cat’s litter tray 猫的便盆 an ice tray (= for making ice cubes) 制冰盘
Word Originlate Old English trīg, from the Germanic base of tree; the primary sense may have been ‘wooden container’.