He vainly hope to travel round the world on foot.

他梦想步行周游世界。

We'll travel round the world.

我们就去周游世界。

They travel round together.

他们一起到处旅行。

They like to travel round the globe.

他们喜欢环球旅行。

She planned to travel round the world.

她打算环球旅行。