反之，则为慢光。

On contrast, it is slow light.

youdao

超慢光将继续成为实验室未来相当一段时间内的一种神秘而新奇的东西。 如果科学家能够使光子减慢到足够的程度

Superslow light will remain a laboratory curiosity for some time to come.

youdao

声比光传播得慢。

Sound travels more slowly than light.

《牛津词典》

声音比光走得慢。

Sound travels slower than light.

youdao

声音比光传播的慢。

Sound travels much slower than light.

youdao

声音比光传播的慢。

Sound travels much slower than light.

youdao