You have to defend yourself against them.

你必须保护自己免受他们的伤害。

How are you supposed to defend yourself against something you've never seen?

如果一样东西你从未见过，你又怎么在它面前保护自己呢？

A habit you should develop if you hope to defend yourself against bigger, stronger opponents.

你也该养成这样的习惯才能打败比你高壮的对手。

What truth could be so terrible that you don't defend yourself against killing your mother?

什么事情那么严重让你不想为谋杀你母亲做出辩解？

And he called these " defense mechanisms." You're defending yourself against the horrible parts of yourself and some of these make a little bit of sense.

他称这些为“防御机制”。你在保护自己免受自己可怕的部分的伤害，其中一些是有道理的。

If you have a right to counsel, you have a right to a lawyer who (we hope) will help you in defending yourself against the accusation.

如果您有权获得律师帮助，您就有权聘请律师（我们希望）帮助您针对指控为自己辩护。