单词	speed of light
释义	speed of light noun phrase : a fundamental physical constant that is the speed at which electromagnetic radiation propagates in a vacuum and that has a value fixed by international convention of 299,792,458 meters per second —symbol c Word History First Known Use 1823, in the meaning defined above
随便看	clarioning clarionner clarionnest clarions clarities clarity clarity of purpose Clark Clark cell Clark Fork Clark nutcracker clark standard cell clark's crow Clark's nutcracker clark's nutcracker Clarke Clarke's gazelle Clarke's spheroid clarkeite clarkia clarkias clarksburgs Clarksville claro claroes

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