In much of the underpopulated west however they replace the major airlines on quite long routes to the small urban outposts on prairies plains and deserts .

然而，在 人口 稀少的西部 大部分地区，在飞往草原、平原、沙漠中边远小城镇的长途航线上，通勤航空公司也取代了大的航空公司。

Many of the islands are mainly wild and underpopulated .

大多数岛屿基本上都是一 片荒凉、 渺无人烟。

It is underpopulated right now so if you are still shopping for a humanities subject this one bears the precious CI-H designation .

现在它们的 选课人数比较少，如果你们还需要一门人文学科，这些都是很可贵的沟通密集型课程。

It was the right strategy in an underpopulated world .

在 人口 稀少的世界，那是正确的战略。