老师告诉他们，由于光传播得比声音快，所以闪电好像发生在雷声之前。

The teacher told them since light travels faster than sound, lightning appears to go before thunder.

youdao

老师告诉他们，由于光传播得比声音快，所以闪电好像发生在雷声之前。

The teacher told them since light travels faster than sound, lightning appears to go before thunder.

youdao