A portable table consisting of a tray mounted on folding legs.折叠餐桌：由安装于折叠桌腿上的托盘构成的便携桌
A tray mounted on or in a piece of furniture, such as an airplane seatback, designed to fold or swing out of the way for storage.托盘桌：安装于家具表面或家具内部的托盘，如飞机座位后背的托盘桌，可折叠或拉出以便保管