If you could look at these cells you could find differences between them, there are chemical differences in the content of each of these cells.

如果观察这些细胞,你就能发现这些差异,每个细胞内容物的化学成分,都会有一些不同

耶鲁公开课 - 生物医学工程探索课程节选

Are you among those more comfortable, have you taken any computer science, were you programming at the age of 10 but you'd actually like to learn a bit about things you don't yet know and challenge yourself with new content or are you somewhere in between?

你对电脑比较熟悉么，你上过计算机专业方面的课程吗？,你是不是10岁就会编程,来上课的目的只是为了学习未知的知识,或者用新知识来挑战战自我？,还是二者兼有？

哈佛公开课 - 计算机科学课程节选