As division happens and the developing organism acquires more and more cells, individual cells become differentiated, they become more and more like their final mature form.

分裂过程不断发生,以及发育中的有机体对更多细胞的需求,细胞个体便逐渐分化,它们越来越接近成熟细胞的样子

耶鲁公开课 - 生物医学工程探索课程节选

A moral maturity as it comes to economic systems, as it comes to how we treat our most vulnerable, how we do foreign policy, what are some of the pathways as you see in front of us as we do moral maturity as we grow up?

经济体质的道德成熟，对待弱者的道德成熟，怎样制定外交政策，在我们逐渐成长的过程中,你认为我们有什么途径能够达到道德成熟吗？

普林斯顿公开课 - 人性课程节选

The most extreme critics of the traditional point of view would say over centuries, that you don't get the full-blown hoplite phalanx that I will be describing to you, even until you get the fifth century B.C.

对传统观点批判最激烈的一种观点,认为这一新型战术,是经过数百年,甚至到了公元前五世纪,才逐渐发展成熟的

耶鲁公开课 - 古希腊历史简介课程节选

Now, these Th-cells, helper T-cells, go on to stimulate B-cells, and it's these B-cells that become the mature antibody producing cells that make quantities of antibody that fill up in your body.

这些辅助性T细胞,进一步刺激B淋巴细胞,从而使这些B淋巴细胞,逐渐发育成成熟的抗体生成细胞,可在体内产生大量抗体

耶鲁公开课 - 生物医学工程探索课程节选