Are you sure that light is faster than sound?
你确定光速比声音还快吗？
Our teacher told us that the speed of light is faster than that of sound.
我们的老师昨天告诉我们，光速是比声速快的。
As is well known, light travels faster than sound.
众所周知，光比声音传播快。
Light travels faster than sound, as is known to all.
光传播得比声音快，这一点大伙都知道。
That light travels faster than the sound is a fact.
光传播速度比声音快是个事实。
As is known to all, light travels much faster than sound.
正如人人皆知的那样：光的传播要比声音快得多。
As is known to all, light travels much faster than sound.
正如人人皆知的那样：光的传播要比声音快得多。
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