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英语翻译
Light trave at a fast speed.It is about a million times faster than sound.In one second,Iight travels about 300,000 kilometres,but sound travels only 340 metres.You may have some knowledge of this difference by watching the start of a running race.If you stand quite far away from the starter,you can catch sight of smoke come from gun before the sound spreading to your ears.
The fast speed of light produces some odd facts.It costs about 8 minutes for sunlight to reach us.If you look at the light of the moon tonight,remember that the light rays Left the moon 1.3 seconds before they reached you.The nearest star is so far away from us.You can see the light from it tonight start to get to you 4 years ago at a speed of nearly2 million kiolmetres every minute.The light from some of tonight’s started on its journey towards you even before you came to this world.
So,strictly speaking,we should not say,“The stars are shining brightly tonight.” We have to say.“The stars look nice

提问时间:2020-06-02

答案
光有着最快的速度.它大概比声速快100万倍.光在一秒钟可以走大约3000,000千米,但是声音只有能走340米.你或许能在赛跑时通过观察起点,来发现一些关于它们的不同点的知识.如果你站得离起点很远,你会在听到枪声之前就先...
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