But now the heart association says everyone should use hands-only CPR unless they feel strong about their ability to do rescue breathing.

VOA: special.2009.06.09

When a slave is freed--and in the Ancient World, in the Roman Empire, most slaves were eventually freed, - unless they just died before long-- they became a freed man.

当一名奴隶被释放。。。在古罗马帝国，几乎所有奴隶最终都会被释放，除非他们很早就去世-,成为脱离奴隶身份的人。

耶鲁公开课 - 新约课程节选

So, unless they find a way to make it work online,

除非他们能找到开辟网络版的办法，

旧金山的报纸 - SpeakingMax英语口语达人

They are also advised not to give anti-reflux medicines for hoarseness unless they are sure patients need them.

VOA: special.2009.09.02

Maybe other principles of hermeneutics will place much more stress on innovation or novelty or difference, but you're not sure people can understand unless they share a great deal of common ground."

也许诠释学的其他原则更强调,创新，独树一帜，与众不同，但你不能保证人们都能理解,除非他们有很多相同之处“

耶鲁公开课 - 文学理论导论课程节选

If this happens, people should remain in or near their car unless they see some kind of help.

VOA: special.2010.01.05

Astell writes the following: Patience and submission are the only comforts that are left to a poor people who groan under tyranny unless they are strong enough to break the yoke.

阿斯苔写道：,“坚忍与顺从是可怜的人儿仅有的慰籍,她们在暴行面前只能低声抽泣,除非她们有力量挣脱羁绊。

耶鲁公开课 - 弥尔顿课程节选

They did not observe births and deaths unless they were involved in medical work.

VOA: special.2010.01.17

They don't come door to door anymore unless they're working for the Jehovah's Witnesses.

现在他们不怎么上门推销了,除了为耶和华见证会工作

耶鲁公开课 - 美国内战与重建课程节选

And he said some industries could not exist unless they were protected by tariffs.

VOA: special.2010.05.20

unless they're very big.

除非他们很有名。

作为一名音乐家 - SpeakingMax英语口语达人

That is,unless they have been sheared.

VOA: special.2009.07.21

I don't expect you to learn that, or even retain it unless I explain the concepts in class, or unless they're explained quite well in the paper itself.

我不要求你们掌握这个,更别提记忆了,除非我在课上做了讲解,或者它们在文章中解释的非常透彻了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

She used nothing they told her, however,unless she could prove it was true to the best of her ability.

VOA: special.2010.04.25

They didn't move, unless they were driven to move.

除非万不得已,他们不喜欢迁徙

耶鲁公开课 - 古希腊历史简介课程节选

Two more states -- Louisiana and Georgia said they would not secede unless the north acted against them.

VOA: special.2009.07.16

Unless you tell them what to do they're not gonna know how to do it.

除非你告诉它要做什么,它自己是不知道做什么的。

哈佛公开课 - 计算机科学课程节选

Beth Polidoro says they may disappear within the next ten years unless action is taken to protect them.

VOA: special.2010.04.20

They said--one of the lessons they were told is, never cut a dividend unless you do it as a-- you could do a one time only dividend.

他们说,他们学到了一点,永远不要停止分红,除非你,除非你只是一次性分红

耶鲁公开课 - 金融市场课程节选

Unless slavery could spread,they said, the slave population in the South would become too large.

VOA: special.2009.07.16

Since they are sentient, free creatures, they should have a right to do whatever they want unless there is a compelling argument against it and a compelling argument would have to involve some infringement of the freedom of other people.

因为他们都是有知觉的自由个体，他们有权做他们想做的事,除非有非常强烈的理由反对他们这么做,而这种强烈的理由是指,这种行为会侵害另一个人的自由。

耶鲁公开课 - 心理学导论课程节选

Unless he and his men received more supplies, they would have to leave the fort.

VOA: special.2009.08.06

You can't understand a regime unless you understand so to speak what it stands for what a people stand for what they look up to as well as its again its structure of institutions and rights and privileges.

你无法了解政体,除非你了解它的主张,人民的主张与敬重的政体,还有其机构,权利与福利的结构。

耶鲁公开课 - 政治哲学导论课程节选

But they said they could not approve it unless everyone else did.

VOA: special.2010.07.29

The reason this fulfillment is important and can be valued is, - according to Richards, that these needs-- unless they are organized or harmonized so that they work together in what he sometimes calls a "synthesis"-- can actually tear us apart.

这种满足之所以重要而有价值是因为，根据Richards的观点，我们的需求-,如果没有被和谐地组织起来,形成一个综合体-,它们会将我们粉碎。

耶鲁公开课 - 文学理论导论课程节选

He says it will be difficult for Iraqi security forces to stop Sunni attacks, unless Sunnis themselves decide to stop them as they did in two thousand seven.

VOA: special.2009.08.22

They cannot rest quietly in Hades unless their body has been properly buried; so you got to do it.

他们无法安息于地府,除非妥善安葬他们的肉身,所以必须要好好处理死者的尸体

耶鲁公开课 - 古希腊历史简介课程节选

"Well they certainly will be doubtful of it unless President Obama makes a strong argument.

VOA: standard.2009.09.22

They are for the most part relatively anonymous individuals unless, you know, they get into trouble like Ken Lay or someone like that or do something amazing like Bill Gates.

因为他们通常只是些,不知名的人罢了，除非他们惹上了像Ken，Lay一样的麻烦,又或者是像比尔·盖茨一样,做过疯狂事的人。

耶鲁公开课 - 政治哲学导论课程节选

But opposition groups are refusing to take part in that domestic inquiry and say they will not join regional mediation efforts unless Captain Camara steps down.

VOA: standard.2009.10.28