What does sound travel through?
声音是通过什么媒介传递的？
What Does Sound Travel Through?
声音是通过什么传播的？
Just how fast does sound travel through the air?
声音在空气中的传播速度究竟有多快？
The aeroplane will travel at twice the speed of sound.
飞机将以两倍于音速的速度飞行。
Sound can't travel through a vacuum and space is a vacuum.
声音无法在真空中传播，而太空就是一个真空环境。
Butt sound doesn't travel through bone nearly as easily as it does through air.
但是声音穿过骨头的过程远不如在空气中传播顺畅。
Sound will travel through air, water, wood, steel or any other elastic material.
声能通过空气、水、木材、钢材和任何其他弹性材料。
Sound waves cannot travel through a vacuum.
声波不能在真空中传播。
Sound waves will not travel through a vacuum.
声波在真空里不能传播。
We know sound can travel through air.
我们知道声音可以通过空气传播。
Sound is a form of wave energy that can travel through air.
声音其实就是声波，能在空气中行进的声波。
It takes time for both light and sound to travel.
光和声音的传播都需要时间。
When we speak, sound waves begin to travel and go in all directions.
我们说话时，声波就开始传播，向四面八方扩散。
All airplanes will travel faster than the speed of sound.
所有飞机的速度都会超过声音的速度。
Sound does not travel at all through a vacuum.
声音一点也不能通过真空。
Sound can travel over very large distances in water.
声音可以在水中传播很远的距离。
Neither sound nor thoughts can travel through a vacuum.
声音和思想都不能在真空里传播。
Neither sound nor thoughts can travel through a vacuum.
声音和思想都不能在真空里传播。
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