To mistreat someone is to treat them badly or cruelly.

苛待某就是恶劣地或残忍地对待他们。

It may appear bountiful, but for humans, this is a surprisingly hostile environment.

它或许看上去广袤富饶，但是对说，这里的环境却惊地恶劣。

Sickness can be an expensive business and the climate can be unexpectedly rough.

疾病可能是一项代价高昂的生意，而且气候可能出乎意料地恶劣。

So birds could easily escape the bad conditions and find new food sources and safer places to live.

所以鸟可以很容易地逃离恶劣环境，并找到新的食物源以及更安全的生活场所。

However, it's used more commonly to mean to treat someone very badly, to control someone, to tell someone what to do.

但是，它更常用非常恶劣地对待某、控制某、告诉某该做什么。

" To persecute" someone means to treat someone very badly because of perhaps his or her race or political beliefs or religion.

“迫害”某意味着非常恶劣地对待某，因为他或她的种族、政治信仰或宗教。

But the efforts were not very successful; and between the soma-holidays there were, of necessity, intervals. The odius sentiment kept on returning.

但是种种努力的作用都不大。而唆麻假总是难免有间歇的。那恶劣的情绪不断地回到心头。

Perhaps one day we'll be able to harness our homegrown glaciers well enough to build whole walls of ice–this time not for keeping people out, but to enable life in some of the planet's harshest landscapes.

或许有一天我们可以利用造冰川建起一片冰长城，这次并不是为了抵御敌，而是为了让一些居住在地球上环境极其恶劣的们好好地生活。