I want to spend some time on that until we talk about-- before we talk about development of the polio vaccine.
我想多花些时间讨论这个问题,在我们讨论,在我们讨论脊髓灰质炎疫苗的发展之前
So, I want to stress the sense of natural development, not some kind of a central authority making a decision about anything.
我在这里强调,这是一种自然的发展方式,不是某种中央政权进行决议的结果
And so, what I want to do is begin this class that's going to talk about cognitive development by talking about his ideas.
所以,这堂课我想,通过他的理论,来讲讲认知发展
What I want you to remember now is that abundant cell proliferation takes place during development.
这节课我希望你能记住,发育过程中伴有大量的细胞增殖过程
But I want to give you at least some sense of the development of the pro-slavery argument, the kinds of arguments that were used, how they changed over time, who made the arguments.
但我至少想提供给你们一些,支持奴隶制方的论据,他们曾经用来论证的一些理由,是如何随着时间的推移而改变,又是谁提出了这些理由
If we want to know the possibilities for spiritual growth, value growth or moral development in human being, then I maintain that we can learn most by studying our most moral,ethical,or saintly people.
如果想知道心灵成长的可能性,人类价值增长或道德发展的可能性,那我认为,我们可以研究,最道德或圣洁的人。
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