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People with heart failure tend to gain weight because fluids build up when the heart can't pump enough blood.
VOA: standard.2010.06.04
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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
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One of the most obvious things about a red blood cell is it doesn't have nucleus, it has no nucleus.
红细胞最为明显的不同就是,它是无核的,它没有细胞核
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Second, there was a part of him, and I didn't knowhow dominant that part might be, (HORN HONKS TWICE) That thirsted for my blood.
VOA: standard.other
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If he splits his head open and there's blood everywhere, I'm less likely to laugh unless I don't like him or something.
如果他摔个头破血流，我就笑不出，除非我很讨厌这个人。
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It wouldn't be like drinking your blood,for instance.
VOA: standard.other
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So the Priestly texts couldn't be clearer: blood represents life.
有关祭司的文章中已经说得很明白了：血液代表生命。
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I think I know The truth is hiding in your eyes And its hanging on your tongue Just boiling in my blood But you think that I can't see What kind of man that you are If you're a man at all Well, I will figure this one out on my own I'm screaming I love you so My thoughts you can't decode How did we get here?
VOA: standard.other
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This is exactly where I don't really know the details, but I take it it's something like: because of whatever the original input was, eventually the blood's no longer circulating and oxygen isn't making its way around the body.
事实上我对这方面不是很了解,我只能认为是,不论最初的死亡原因是什么,最后血液不再流动,氧气不能输送到全身
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The name of the molecule isn't important, but it's a molecule that stimulates the heart to produce new blood vessels around it.
这种分子的名字无关紧要,但要知道它能刺激,在病变血管周围生成新血管
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Sometime after you've eaten, say you had this Snickers bar at lunchtime and you don't have time to get anything else to eat during the day, your blood glucose level will go down.
有时候你们吃完饭以后,午饭的时候你吃了士力架,在这一天当中你又没时间吃别的东西,你的血糖水平就会下降
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If a tumor starts to grow and it doesn't develop a vascular supply it doesn't develop blood vessels in it, then it can't get bigger than a certain size and there's lots of evidence from many cancers showing that this is true.
如果肿瘤生长时,没有形成新的血管以维持供血,肿瘤内部也没有血管的话,它的大小将非常有限,这一结论已有许多科学成果可以证明
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Here, what's different between autocrine and paracrine is that there's some distance between the cell that produces the signal and the cell that receives the signal, but it's not too great a distance because the blood system doesn't have to be involved.
自分泌和旁分泌的区别在于,旁分泌中,产生信号的细胞和接收信号的细胞,之间存在着一定的距离,但这个距离并不远,因为血液系统并不参与
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There are services now, we don't know yet how to get those stem cells out of cord blood and how to use them for therapies, but it's reasonable to think that we might know about this in 30 years.
现在已经有提供这样的服务了,我们现在还不知道如何从脐带血中,提取这些干细胞并用于治疗,但有理由相信,在未来的30年内我们会知道的
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Sacrifices that purge the sanctuary of ritual impurity, primarily the hatta't, always involve the manipulation of the animal's blood, daubing it on the altar and on Yom Kippur, actually entering the innermost shrine and sprinkling it on the throne of God and the footstool, the ark itself.
能够净化圣所中仪式上不洁的献祭，主要是hatta’t，经常包含着对动物血液的操纵,在赎罪日把血涂在祭坛上，进入最里面的神殿,把血洒在上帝的王座，以及他的脚凳，也就是方舟上。
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We did not yet have good methods for screening blood to look for HIV, we didn't have the ELISA technique that I--we talked about in section a few weeks ago and so there was a great concern that there might be other diseases that you'd be passing on from-- unknowingly from this subset of patients that you're isolating the vaccine from.
那时我们还没有一种好的方式,来从血液中筛查出HIV,也还没有ELISA技术,该技术我们在几周前的一个章节中谈到过,因此,那时仍存有,很大的担心,那就是你有可能,在不知情的情况下,被那些病人,感染上其它疾病,因为疫苗就是从他们身上提取出来的
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