The 3rd kind of MS is called Secondary Progressive.

VOA: special.2009.01.06

And also talk about the secondary literature on them.

还讨论和这些有关的二手文献。

主修古典文学 - SpeakingMax英语口语达人

So let me turn now to just some of the administrative, organizational details of the course, the secondary readings that we'll be using.

好现在让我来另外讲一些关于这门课程的管理及,组成成分方面的细节，一些我们将要使用的阅读辅助材料。

耶鲁公开课 - 旧约导论课程节选

A secondary benefit is getting gas-guzzling old clunkers off the road and replaced with more fuel-efficient band new models.

VOA: standard.2009.05.18

This is an unfortunate thing you see throughout education frankly, certainly at the secondary and primary school level where you just insert technology into the classroom and expect to solve problems, that is not in life always the case.

遗憾的是,中小学教育中,就是讲知识然后运用所学的知识解决问题,但是实际生活中不总是这样。

哈佛公开课 - 计算机科学课程节选

In 2009,Sierra Leone President Ernest Bai Koroma launched a review of the education system following abysmal exam results at both the primary and secondary level.

VOA: standard.2010.02.25

If there were just-- if you were trying to create a positive reaction of antigens and it showed up naturally wouldn't it create this reaction anyway in terms of your body would create antibodies like the secondary response volume to antibodies?

如果这里仅有,如果在自然条件下,尝试建立抗原的阳性反应,抗体这是否会像这样反应,以你身体为例,你的身体是否会产生,同二次免疫一样的抗体浓度

耶鲁公开课 - 生物医学工程探索课程节选

Most of the few U.S.airports that possess body scanning capability are using the technology for secondary screening of passengers who warrant closer examination by TSA officers.

VOA: standard.2009.12.30

Now last time, following Ricoeur, I mentioned Marx, Nietzsche and Freud as key figures in the sort of secondary development that somehow inaugurates theory, and then I added Darwin.

上次继里克尔之后，我提到了马克思，尼采和弗洛伊德,把他们作为推动初始理论进一步发展的关键人物，之后我加上了达尔文。

耶鲁公开课 - 文学理论导论课程节选

Holmes said Sudanese government efforts to fill the most critical gaps have been inadequate, but have for the moment prevented a secondary humanitarian crisis from erupting.

VOA: standard.2009.06.11

Other readings, the secondary readings for the course, are all already online .

其它这门课的阅读材料，都在校园网上。

耶鲁公开课 - 旧约导论课程节选

So, every time you're exposed to a new vaccine or a new antigen you go through this primary response before you have the secondary response.

所以,每当你接触到新疫苗或是新抗原,在再次免疫之前,机体将会经历这样的初次免疫过程

耶鲁公开课 - 生物医学工程探索课程节选

Right, but if you just got the primary exposure, wouldn't the secondary response automatically-- not a booster shot, just the secondary response, because you were exposed?

但这时你已经获得这样的初次免疫,而因为你已经天然感染过该病毒,那么,在没有加强针的情况下,二次免疫是否无法自动发生

耶鲁公开课 - 生物医学工程探索课程节选

One of the things that I didn't mention before is that when you get this primary response and then the secondary response, if you looked at the antibodies that are generated during the primary response, again we're only looking at antibodies that bind to the particular antigen or vaccine that we have used for the priming.

还有一点我之前没有提及,当你获得初次免疫,以及再次免疫之后,如果你仔细观察抗体,观察那些在初次免疫中生成的抗体,这次我们同样只是观察抗体,那些与我们在初次免疫中所用到的,特定抗原或疫苗相结合的抗体

耶鲁公开课 - 生物医学工程探索课程节选