terrain

这片地形不适合建造房屋，因为太崎岖了。

This ___terrain is not suitable for building houses because it's too rough.

在金融领域这个复杂的地带，经验丰富的投资者往往能把握先机。

In the complex ___terrain of finance, experienced investors often spot opportunities first.

宇航员们终于踏上了这片红色地貌，标志着人类首次与地球以外的土地接触。

The astronauts finally stepped onto the red ___terrain, marking humanity's first contact with land beyond Earth.