Access to a Caesarean section to relieve the pressure of obstructed labor is the most common way of preventing an unborn child from pressing so tightly in the birth canal that it cuts off blood flow to surrounding tissue.

VOA: standard.2009.12.23

The way, in the simplest terms that cyanide can kill you, is it basically out-competes your oxygen for the heme in your blood.

氰化物可以杀掉你的最简单的一种方式基本上就是，将氧从你血液中,的血红素中挤出去。

麻省理工公开课 - 化学原理课程节选

For the life of the flesh is in the blood, and I have assigned it to you for making expiation for your lives upon the altar."

因为活物的生命是在血中，我把这血赐给你们，可以在坛上,为你们的生命赎罪“

耶鲁公开课 - 旧约导论课程节选

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

It was launched in 1948 by The National Heart Institute, that later is now called The National Heart, Lung & Blood Institute, the NHLBI.

这项研究是1948年,由国家心脏病学会提出的,该学会之后更名为,国家心肺血液研究所,简称NHLBI

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And you may not eat animal flesh that has the lifeblood in it because the blood is the life and that belongs to God, that's holy, right?

也不能生吃带着血的动物生肉,因为血液是活的，它属于上帝，它是神圣的，不是吗？

耶鲁公开课 - 旧约导论课程节选

It occurs because blood flow gets reduced in that blood vessel and so the heart muscle, which is actively beating all the time, needs large quantities of oxygen provided by blood can't get the blood through the vessel.

发病原因是冠状动脉血流量降低,因为心肌搏动永不停歇,随时需要血液供给大量氧气,发病时血液无法正常流过血管

耶鲁公开课 - 生物医学工程探索课程节选