| 释义 |
ratchet/ˈrætʃit/ n. & v.●n. 1 a set of teeth on the edge of a bar or wheel in which a device engages to ensure motion in one direction only 棘齿机构 2 (in full 全称 ratchet-wheel) a wheel with a rim so toothed 棘轮 ●v. (ratcheted, ratcheting) 1 tr.a provide with a ratchet 装棘齿(棘轮)于 b make into a ratchet 把…做成棘齿形 2 tr. & intr. (often foll. by 常后跟 up) move as under the control of a ratchet 一步步推动…；被一步步推动 [French rochet ‘blunt lance-head, bobbin, ratchet’, etc., probably ultimately from Germanic] |