As we all know,light (travel)faster than sound
问题描述:
As we all know,light (travel)faster than sound
答
正如我们都知道的,光速比声速快
答
As we all know,light (travels)faster than sound
答
As we all know,light (travels)faster than sound .光比声音传播的快,这是一个公认的事实,是一个自然规律,所以不管全文是现在时还是过去式,这一类表达都用一般现在时