trolley
/ˈtrɒlɪ/noun
(pl. -eys)
1
- Brit. a large metal basket or frame on wheels, used for transporting heavy or unwieldy items, such as purchases in a supermarket or luggage at an airport or railway station〈英〉（超市购物或机场、火车站运送行李的）手推车。
1.1
- a small table on wheels or castors, typically used to convey food and drink（尤指送食物、饮料等的）台车, 食品车。
1.2
- a hospital bed on wheels for transporting patients who are incapable of moving unaided（医院用的）担架车。
2
- （亦作trolley wheel）a wheel attached to a pole, used for collecting current from an overhead electric wire to drive a tram电车触轮（与架空电线接触以驱动电车）。
3
- short for TROLLEYBUS or TROLLEY CAR.TROLLEYBUS或TROLLEY CAR的简称。
短语
off one's trolley
- Brit. informal mad; insane〈英, 非正式〉疯的; 精神不正常的。
词源
early 19th cent.: of dialect origin, perhaps from TROLL2.