We travelled north to Tillaberi, a rolling landscape of sand, wind-blown dust, and sparsely scattered bushes and trees, seemingly in the very last stages of desiccation.

我们一直向北到了提拉贝里，那里是一片荒凉—飞沙，飞尘还有稀疏的树木，看起来也即将要干枯了。

youdao

Wherever the wind dropped sand, dunes formed.

VOA: special.2010.01.04

Dune: accumulations of wind-blown sand in ridges or mounds that lie landward of the beach and usually parallel to the shoreline.

UNESCO: L O S S A R Y

The trees, donated by members of the public, will help to slow the wind, cause sand to be deposited and allow the shrinking dunes to grow.

BBC: Fylde sand dune restoration boosted by Defra funding

When the wind from the west meets the wind from the east, the sand is pushed upward like the ocean waves the dunes resemble.

CNN: Romancing the dune in Namibia