tray 有没袋子的意思

tray

n.[C]
1. 盘子,托盘
The waitress carried the dishes on a tray.
女服务员用盘子端菜。
2. (办公桌上的)文件盒
His secretary put his mail in his in tray.
他的秘书将他的信件放到收文盘内。
3. (皮箱内的)隔底匣
Our dentist keeps his instruments in trays.
我们的牙科医生将他的器具放在隔底盘内。
4. (无线电)发射箱
5. 一盘的量[(+of)]
She brought me a tray of tea and sandwiches.
她给我拿来一盘茶和三明治。