我认为我不需要再讲一次你们下节课的阅读作业；有一个图表已经说明地非常清楚了。

I don't think I need to draw any echoes, your reading assignment for the next class; it has a diagram that shows this very clearly.

youdao

作为这节课的开始，我先稍微回顾一下，一些关于发育过程的内容，先说胚胎发育，这里有张图。

To start out I'm going to go back to the thinking about development a little bit, embryonic development, and show you a picture here.

youdao

有个问题我们下节课会讨论下。

A question to think about for next time.

youdao

Vertically means that every class connected to the next class is connected to every class throughout the semester around a spiral.

纵向意味着每一节课都和下一节课有关系,和整个学期内的每一节课都有关系，呈一个螺旋状。

哈佛公开课 - 幸福课课程节选

We now know, and I'm going to talk about next time, lots of ways to do this, alternatives to this method of bioengineering.

我下节课会讲,我们现在知道,有很多方法能做到这一点,并能替代上述生物医学工程方法

耶鲁公开课 - 生物医学工程探索课程节选

It also is a good lesson in how difficult it is, and we'll talk about this in a subsequent class, to actually measure what people eat.

同样这能很好的说明,实际评价人们的饮食有多困难,我们下节课会讨论这个话题

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选