我们驾车穿越了整个国家，沿途欣赏了许多美景。

We ___traveled across the country by car and enjoyed many scenic views along the way.

他们环游世界时去过二十多个国家。

They ___traveled to more than twenty countries when touring the world.

声音在水中传播得比在空气中快。

Sound ___travels faster in water than in air.

谣言在小镇上迅速传开了。

The rumor ___traveled fast around the small town.