| 单词 | gravity |
| 释义 | gravity n. 1. a the force that attracts a body to the centre of the earth or other celestial body. b the degree of intensity of this measured by acceleration. c gravitational force. 2. the property of having weight. 3. a importance, seriousness; the quality of being grave. b solemnity, sobriety; serious demeanour. Phrases and idioms gravity feed the supply of material by its fall under gravity. Etymology: F gravit{eacute} or L gravitas f. gravis heavy |
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