| 例句 |
An electrical pulse in a wire travels close to the speed of light.电线里的电脉冲以接近光速的速度传输。The speed of light is an important constant.光速是一个重要的常数。The speed of light boggles the mind.光速之快，不可思议。Imagine a device that could send a signal at a speed greater than the speed of light.想象一下有一种能够以大于光速的速度发出信号的装置。Nothing can travel faster than the speed of light.任何东西的传播速度都不会超过光速。Radio waves travel at the speed of light.无线电波以光速传播。 |