| 单词 | velocity |
| 释义 | velocity n. (pl. -ies) 1. the measure of the rate of movement of a usu. inanimate object in a given direction. 2. speed in a given direction. 3. (in general use) speed. Phrases and idioms velocity of escape = escape velocity. Etymology: F v{eacute}locit{eacute} or L velocitas f. velox -ocis swift |
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