a celestial object consisting of a nucleus of ice and dust and, when near the sun, a ‘tail' of gas and dust particles pointing away from the sun
彗星。
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cometn.彗星
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comev.来;进入;发生;出现;占;变成;进入某状态;被出售;被采用;可用;可找到;达到性交高潮
"late Old English, from Latin