That's why you need two kinds of immune responses.

这就是你需要两种免疫反应的原因
We're going to talk a lot about antibodies,

我们会讲不少有关抗体的内容
we're going to talk about antibodies in section,

在分组讨论会里会继续讲抗体
and at the end of the course,

课程结束的时候
our last section meeting every year we get together and we talk about

在每年最后一场讨论会上我们会讨论
which sections did you think were useful and which parts - which sections were not so useful.

分组讨论哪一节有用哪一节没用
The section when you do today

今天你们要做的分组讨论
is always the most popular section of the year,

一直是每年最受欢迎的部分
you'll know why after the section,

讨论完了你们就明白了
and you can tell me afterwards if you think you figured out why.

如果你明白了的话课后告诉我
It involves thinking about antibodies

讨论包括抗体研究
and how to use antibodies and technology.

和抗体应用及相关技术