They ranged the hills and valleys.

他们漫游于高山低谷。

youdao

The land is a land of hills and valleys.

我们要得的那地乃是有山有谷之地。

youdao

The next frontier will be in less accessible places, such as remote villages, hills and valleys.

下一个尚待开发的地区将会是在之前很少有接触的地方，比如说遥远的村庄和山谷。

youdao

It was a hard march through thick woods, and across rough hills and valleys.

VOA: special.2009.10.15

It winds through hills and valleys, past Palestinian villages and nearby red-roofed Jewish settlements.

NPR: Israel May Sever Israeli, Palestinian Road Links

When it emerges, flashes of lightening illuminate the hills and valleys lighting up Horton Plains, the peak of Sri Pada and the never-ending tea plantations.

BBC: Getting to the heart and soul of hilly Sri Lanka

Given that odours can cue recall of a memory - an "earthy" flavour might evoke the joys of the hills and valleys to one person, but an unpleasant damp-in-the-basement experience to another.

BBC: Is there really a north-south water taste divide?