歌词
The cause of thunder has been a subject of discussion for a long time.
打雷的原因是一个已经被讨论了很长的时间的话题。
In the third century BC, it was believed that thunder is caused due to collision of clouds .
在公元前3世纪，人们认为打雷是由于云层碰撞造成的。
However, the most accepted theory was developed in the 20th century.
然而，最被接受的理论是在20世纪发展起来的。
According to this theory, the bolts of lightning are very hot, much hotter than the surface of the sun.
根据这个理论，闪电的温度很高，比太阳表面的温度高得多。
When this high temperature bolt hits the surrounding air,
当高温闪电击中它周围的空气时，
there is an instant expansion of the air, sending out a shock wave, which we hear as a sound of explosion.
空气立即膨胀，发出冲击波，这就是我们听到的爆炸声。
Thus, thunder is caused due to rapid heating and cooling of the air , near the stroke of lightning Thunder can be dangerous.
因此，打雷是由于空气的迅速加热和冷却而引起的，靠近打雷的闪电可能会有危险。
In case that you are outside during a thunderstorm,
如果在雷雨期间你在外面，
it is advisable to avoid open fields, beaches and lakes and also stay away from tall trees.
建议避开开阔的田野、海滩和湖泊，也不要靠近高大的树木。
The safest way is to get inside your home or stay in the car.
最安全的方法是回到家里或者呆在车里。
专辑信息