| 单词 | trolley |
| 释义 | trolley /trol"ee/, n. , pl. trolleys, v. , trolleyed, trolleying. n. 1. a trolley car. 2. a pulley or truck traveling on an overhead track and serving to support and move a suspended object. 3. a grooved metallic wheel or pulley carried on the end of a pole (trolley pole) by an electric car or locomotive, and held in contact with an overhead conductor, usually a suspended wire (trolley wire), from which it collects the current for the propulsion of the car or locomotive. 4. any of various devices for collecting current for such a purpose, as a pantograph, or a bowlike structure (bow trolley) sliding along an overhead wire, or a device (underground trolley) for taking current from the underground wire or conductor used by some electric railways. 5. a small truck or car operated on a track, as in a mine or factory. 6. a serving cart, as one used to serve desserts. 7. Chiefly Brit. any of various low carts or vehicles, as a railway handcar or costermonger's cart. 8. off one's trolley, Slang. a. in a confused mental state. b. insane: He's been off his trolley for years, but his family refuses to have him committed. v.t. , v.i. 9. to convey or go by trolley. Also, trolly. [1815-25; orig. dial.; appar. akin to TROLL1] |
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