| 单词 | ratchet |
| 释义 | Word Frequency ratchet 1(ˈrætʃɪt) noun 1. a device in which a toothed rack or wheel is engaged by a pawl to permit motion in one direction only 2. the toothed rack or wheel forming part of such a device verb 3. to operate using a ratchet 4. (usually foll by up or down) to increase or decrease, esp irreversibly electricity prices will ratchet up this year Hitchcock ratchets up the tension once again Word origin C17: from French rochet, from Old French rocquet blunt head of a lance, of Germanic origin: compare Old High German rocko distaffWord Frequency ratchet 2(ˈrætʃɪt) adjective US slang belonging to an economically deprived social group ratchet kids Word origin C20: African-American form of wretched |
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