名词
中文翻译：光速
同义词：
['speed of light', 'speed of propagation例句：1. The speed of light is constant regardless of the distance traveled.（光速是恒定的，无论距离有多远。）']
例句：
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1. The speed of light is constant regardless of the distance traveled.
光速是恒定的，无论距离有多远。
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2.The speed of light is used in physics to describe how fast information can travel through space.
光速在物理学中用来描述信息如何在空间中传播的速度。
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3.The speed of light is a fundamental principle in physics and plays a crucial role in many scientific theories.
光速是物理学的一个基本原理，在许多科学理论中起着关键作用。