mountainous terrain

基本解释

Here, the high mountainous terrain is covered with forests.
高山上布满森林。
Thanks to the country's mountainous terrain, landslides hampered transportation and rescue efforts.
由于该国的山区地形，山体滑坡阻碍了交通运输和救援工作。
Co-author Martin Jutzi of the University of Bern in Switzerland said the study was an attempt to explain the odd crust and mountainous terrain of the moon's far side.
另一位研究论文撰写者，瑞士伯尔尼大学的马丁·朱迪斯称，这项研究试图解释月球背地面古怪的风沙和丘陵地形。

Bin Laden is believed to be in hiding in Pakistan, along the remote mountainous terrain border with Afghanistan.
She says the work still is not easy, though,considering this is the country's worst flooding in more than 80 years and the area's mountainous terrain can make transportation difficult, even in the best of weather.

The militants have had years to entrench positions that are dug into mountainous terrain of goat tracks, caves and thick forest.
ECONOMIST: Pakistan and the Taliban
Officials say there simply aren't enough troops to hold Afghanistan's mountainous terrain or to deal with the growing number of fighters.
NPR: Series Overview: The Embattled Frontier