We are a unit because we defend from the front.

我们是一体的，因为我们从前场开始防守。

youdao

For network security, it is important to defend from DOS attack.

如何防御DOS攻击是网络安全中一个重要的方向。

youdao

Aggression is a kind of innate survival mechanism, an instinct for self preservation, that allows animals to defend themselves from threats to their existence.

攻击性是一种天生的生存机制，一种自我保护的本能，使动物能够保护自己不受生存威胁。

youdao

And they had to defend a line almost sixty kilometers long, from Richmond to the city of Petersburg.

VOA: special.2009.12.17

So it could be--From Hannibal's point of view he doesn't know which pass you're going to defend, but let's have a look at his payoffs.

站在汉尼拔的立场,他应该,不知道你会防守哪条路,但让我们看看他的收益

耶鲁公开课 - 博弈论课程节选

Now, who here wants to defend cost-benefit analysis from this apparent counter example?

现在，就这个明显的反例,有谁想为成本效益分析辩护？

耶鲁公开课 - 公正课程节选

Invariably we defend from the front and win the ball back as high up the pitch.

BBC: Bristol Rovers appoint Dave Penney as their new manager

That means that between now and the French Open, he's going to play at most 19 more matches. (Federer won Dubai, Indian Wells and Madrid last year, so he has many ranking points to defend from those events.) If he plays 15 to 18, that's plenty.

WSJ: Paths Differ but Goals Same for Nadal, Federer

This was as much to defend Al Gore and the Democrats from Republican charges of lily-liveredness as to defend America from its enemies.

ECONOMIST: Missile defences