At one extreme, you have limbs made for supporting a large load.

在一个极端，你的四肢是用来支撑大负荷的。

DC is at one extreme end of the spectrum of what can be described as internet gaming disorder.

DC的程度已经极端到可以被描述为网络游戏障碍了。

By style, I mean the type of English chosen to express an idea, at one extreme it may be very formal, at the other colloquial or even slang.

所谓风格，我指的是选择用来表达想法的英语类型， 在一个极端，它可能非常正式， 在另一个极端， 它可能是口语化的， 甚至是俚语。

So at one extreme there's the personal diary, kept by an individual who wants to tell the whole world about his or her activities, or interests and opinions and so on.

一端会是私人日志，也就是为个人所拥有的博客，他们会跟全世界分享自己做的事情或者兴趣以及观点等等。