The ego is the first line of defense between the self and the outside world.

VOA: special.2010.04.13

Now, just to give you a sense of how cold and calculated this business was, and how in many ways the first defense or justification of slavery in America is of course it certainly is by the late Antebellum Period it is an unabashed economic defense, as we'll see.

以上只是为了让你们体会到,这种交易是如何的冷酷而精明,以及战前后期第一次,美国奴隶制度的保卫与正名之战,不管怎么看,都毫无疑问,是一场赤裸裸的利益保卫战,正如我们所见

耶鲁公开课 - 美国内战与重建课程节选

This is one of the primary strategies that Milton develops, especially in the first two books of Paradise Lost, as a kind of defense against his dependence on classical literature.

这是弥尔顿发展出的早期策略之一，尤其是在《失乐园》的前两册书中,这似乎是在反驳他对古典文学的依赖。

耶鲁公开课 - 弥尔顿课程节选

He says agents working at airports, seaports and border crossings are often the first line of defense for victims.

VOA: standard.2010.07.23

Let's hear first from the defense of Dudley and Stevens.

先听听为达德利和斯蒂芬斯作出的辩护。

耶鲁公开课 - 公正课程节选

Defense officials say the secretary's first stop,Tokyo, will be partly an opportunity to get to know Japan's new leaders.

VOA: standard.2009.10.18

He said that misconception had landed him in jail. The former Liberian president first took the stand in his defense on July 14.

VOA: standard.2009.07.31

Moscow also sees the missile-defense system as the first step in a worldwide American missile-defense program.

VOA: standard.2009.07.15

The judge said he had considered defense arguments for a lesser sentence because Selebi is 60 years old and it was his first offense.

VOA: standard.2010.08.03

Mr.Taylor is the first witness in his defense and has spent much of the last 13 weeks dismissing the prosecution case against him as a series of lies.

VOA: standard.2009.11.10

Biden explained the advantages of the new system: "Our new phased adaptive approach to missile defense is designed to meet a growing threat, not only to the United States, but first and foremost to Europe,"

VOA: standard.2009.10.21

The Spanish picked up the pressure in the second half, but were unable to find their way through the U.S.defense, which was bolstered by the return of captain Carlos Bocanegra, who was missing from first round matches with a hamstring injury.

VOA: standard.2009.06.24