Well, insulin is a protein, it's produced by cells in the pancreas, it circulates in your blood.

胰岛素是一种蛋白质,由胰腺细胞分泌,随着血液不断在体内循环

耶鲁公开课 - 生物医学工程探索课程节选

The red blood cells that carry oxygen only live within your circulation for about a month and so you have to continually be replacing cells that are dying and so there are cells that are proliferating.

携带氧的红细胞,在你的循环系统中的寿命只有一个月,因此你必须持续不断地更新衰老的细胞,所以就有在增殖的细胞

耶鲁公开课 - 生物医学工程探索课程节选

It's going to run through the loop, accumulating the answers, but because I'm subtracting, x it's just going to keep making x more and more negative as it goes along, again it's off into an infinite loop.

它一直在循环，不断的累加答案，这是因为我一直在对x做减法，这使得作为负数的,变的越来越小，又进入一个无限循环了。

麻省理工公开课 - 计算机科学及编程导论课程节选

So unlike Scratch where you pretty much had to say "repeat" ten times or whatever, or forever where it's just "forever" with for loops, -- can you actually specify a finite number of iterations -- and as I learned 15 years ago, finite is important.

所以不像Scratch，你大致上需要用,“repeat“10次或更多，或者需要不断地使用当它,是死循环时，你们能够指定出一个有限的迭代次数-,像我15年前学的，有穷的是重要的。

哈佛公开课 - 计算机科学课程节选

If you repeatedly go through this cycle of denaturing, synthesizing, denaturing, synthesizing you'll get many, many copies of DNA.

如果你不断重复这个变性-复制,变性-复制的循环过程,你就会得到很多很多的DNA复制产物

耶鲁公开课 - 生物医学工程探索课程节选

So a loop or an infinite loop, because true is always true, there is no-- nothing on the screen that seems to change this keyword true, so this is actually a deliberate infinite loop, but so was that thing up top to forever say hi or whatever it is you wanted to do.

因此而出现死循环，屏幕上的这些语句无论怎么运行,都无法改变它为真的事实，这就是所谓的死循环，无论你想不想要,屏幕上都会不断打印出“hi“

哈佛公开课 - 计算机科学课程节选