sound travel的用法和样例：
例句
- All sounds travel to our ears in about the same way and come to us in waves that can be seen only with special electronic equipment.
所有的声音都以大约相同的方式传到我们的耳朵，传给我们的声波只能用特殊的电子设备才能显现。 - Sound travels through the medium of air.
声音通过空气这一媒介传播。 - How much does sound travel faster in water than in air?
声音在水中比在空气中传播快多少？
