我就是从那里了解了光比声音传播速度快的，因为声音总是和飞石差不多一样的速度。

That's where I learned that light travels faster than sound, which is almost as slow as a flying rock.

youdao

我就是从那里了解了光比声音传播速度快的，因为声音总是和飞石差不多一样的速度。

That's where I learned that light travels faster than sound, which is almost as slow as a flying rock.

youdao