The unit for time will be a second, and time will be measured in seconds.

时间的单位是"秒",时间都是按秒来计的

耶鲁公开课 - 基础物理课程节选

Those billions of cells come from successive rounds of cell division.

这数以十亿计的细胞,都来自一次次的细胞分裂

耶鲁公开课 - 生物医学工程探索课程节选

And the brain is a remarkably beautiful and complex structure involving cortex, the cortex has maybe over 50 billions neurons and each one is connected to a thousand others and so forth.

大脑的构造漂亮，复杂，让人惊叹,大脑有皮层，皮层中的神经元多大500亿之多,每个神经元都与数亿千计的其他神经元相连。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

One of the beautiful things about antibodies is that one your immune system is able to make antibodies against all the thousands, ten thousand, hundred thousand different pathogens that you'll come into contact with in your lifetime.

抗体的一个绝妙之处就在于,你的免疫系统可以分泌抗体来对抗,成千上万的 甚至数以十万计不同病原体,这些病原体都是你一生中可能会遇到的

耶鲁公开课 - 生物医学工程探索课程节选