speed of light是什么意思_speed of light的用法_翻译_读音

- 光速
英英释义
Noun:

the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second
例句
近反义词
【近义词】

light speed 光速

C 字母C
临近单词

speed speeddown

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