| 单词 | lever |
| 释义 | Word Frequency lever(ˈliːvə) noun 1. a rigid bar pivoted about a fulcrum, used to transfer a force to a load and usually to provide a mechanical advantage 2. any of a number of mechanical devices employing this principle 3. a means of exerting pressure in order to accomplish something; strategic aid verb 4. to prise or move (an object) with a lever Derived forms lever-like (ˈlever-ˌlike) adjective Word origin C13: from Old French leveour, from lever to raise, from Latin levāre, from levis light |
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