If cells were actively proliferating, that is you had a population of cells that are actively proliferating, they would be going through continuous rounds of the cell cycle.

如果细胞处在活跃增殖状态,就是说有一定数量的,细胞具有增殖活性,它们就会连续地经历细胞周期的各个阶段

耶鲁公开课 - 生物医学工程探索课程节选

Your brain is active as if you were awake, your EEGs are similar to waking, paralyzed except for the eyes, oh, men get erections and you have dreams.

大脑处于活跃状态，像清醒时一样，脑电图也和清醒时相似，但除了眼部，全身都不会动，男人会勃起，梦境会出现。

耶鲁公开课 - 心理学导论课程节选

If you want to know which part of your brain is responsible for language, you could put somebody into a scanner and have them exposed to language or do a linguistic task or talk or something and then see what parts of their brain are active.

如果你想知道大脑的哪个区域,负责语言功能,你可以对被试进行扫描,让他们暴露在语言环境中,或是进行语言学任务,或者聊天,然后观察他们的哪些脑区处于活跃状态

耶鲁公开课 - 心理学导论课程节选