Let me just reiterate and mention some more examples which are actually written here, so they'll find their way into your notes.
让我再次重申并强调一下,我们会涉及到更多的案例,这样你笔记内容就会更丰富了
Memory cells are long lasting cells that remember this exposure and can respond very quickly on second exposure.
记忆细胞可以长时间记忆与抗原的接触,并在再次免疫中迅速做出应答
The earth experiences he says certain periodic destructions and cataclysms civilizations are reduced to barbarism only to recover and grow again.
他说,世界不断经历,阶段性的摧残及剧变,文明虽被降格至野蛮,但终究会复原并再次茁壮。
So I have to get out the damn scale again and go through that whole process.
那我就不得不再次使用那个讨厌的天平并,进行整个重复比较的过程。
So I introduced Hirsch in that context, and now I want to go back to him a little bit and I want to work with two passages which I have sent you all in e-mail-form and which I have neglected to put on the board, but they're so short I don't think that will be necessary.
我在刚才那个问题中提到了赫施,现在我想再次讲一讲他,并分析下我用邮件发给你们的那两段话,我忘记把它们放到黑板上了,但它们很短,我想那样也没有必要。
Some, like the smallpox vaccine on one exposure generates a very high response that lasts for many years so you don't need a boost.
有一些疫苗,比如接触一次天花疫苗后,人体就能产生高水平的免疫应答,并持续很多年,所以无需再次接种
Because on second exposure there's another population of cells that I haven't mentioned before that remain after the primary exposure and those are called memory cells, they're down here.
因为在再次免疫中,有另外一些细胞,我之前并没有提到过它们,在初次免疫结束后保留下来的细胞,被称为记忆细胞,它们在下面
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