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From the tragedy in Moscow's subway, to the 2004 Madrid train bombings and the explosions in London's public transit system the following year, experts say no country is immune to terrorism.
VOA: standard.2010.03.30
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No life is completely immune to those.
没有谁的人生是一帆风顺的。
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We're going to talk about how they're prepared, but it's a preparation that is intended to stimulate your immune system.
我们会讲它们是如何做准备的,它通过刺激你的免疫系统来进行准备
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It was a return to his roots. He began his work in the 1940s in Mexico, breeding wheat crops that were immune to another type of wheat rustthat had devastated crops there.
VOA: standard.2009.09.16
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And our psychological immune system strengthens when we give ourselves the permission to be human.
我们的心理免疫系统会加强,当我们准许自己为人时。
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He says normally a protein in healthy immune cells causes the cells to die after they attack an invading virus or bacteria.
VOA: special.2010.05.19
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So, just an introduction to the classes of potential foreign invaders that our immune system tries to defend us against.
所以 我只是简单介绍几类,免疫系统试图抵御的潜在外来侵略者
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What happens is your immune response goes haywire and then your body starts to attack itself, so theres a failure to shutdown.
VOA: special.2010.03.16
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This is a way for the immune system to recognize things that are going wrong inside the cell protected from antibodies.
这是免疫系统识别,抗体不能识别的细胞内病变的方法
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The immune system loses its ability to tell the difference between foreign materials and its own cells.
VOA: special.2010.06.15
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So, the antigen we're thinking about is a vaccine particularly designed to elicit immune response against a pathogen.
我们现在考虑的这种抗原,是一种特别设计的疫苗,它能够诱发免疫效应以消灭病原体
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The Northwestern University researcher took part in a study that found a way to turn off the immune system in mice with arthritis.
VOA: special.2010.03.16
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People have tried to produce viruses that are different, adenoviruses for example, that your immune system can't recognize.
人们尝试制造一些不同的病毒,就拿腺病毒来说,让免疫系统无法识别
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Newer drugs attempt to suppress only one small part of the immune system, not all of it.
VOA: special.2009.04.14
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Usually it's done by taking all or part of the infectious agent, and showing them to your immune system in some way.
通常它会带着全部或部分抗原介质,并以某种方式呈递给你的免疫系统
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If the immune system weakens at any point, they begin to spread and then attack.
VOA: special.2009.03.25
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So a vaccine is designed in order to engage that biology, in order to provide antigens that will stimulate specifically your immune system.
所以疫苗的作用就是参与这个生理活动,提供抗原 来刺激你的免疫系统
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They also may use immunotherapy -- getting the body's immune system to fight the cancer.
VOA: special.2010.07.06
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We're going to take these general topics and talk about how they work in the nervous system and the immune system next time.
在下节课我会讲这些内容以及,配体-受体系统在神经系统和,免疫系统中的作用原理
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Allergies are abnormal reactions of the immune system in response to otherwise harmless substances.
VOA: special.2009.07.28
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How do you engineer what happens in our immune system in order to protect us from diseases?
我们如何将免疫功能工程化,保护我们远离疾病
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Those diseases affect the immune system the body's natural resistance to disease.
VOA: special.2009.11.24
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Learning how to turn on your immune system to protect you from a specific pathogen turns out to be very particular to that pathogen.
它发动你的免疫系统来保护你,免受某种病原体的侵袭,只是针对这种特定病原体
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The sad thing is that the majority of people that are killed by malaria are children because there immune system is not strong enough to ward off this infection."
VOA: special.2009.12.22
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That's a big problem and so can you protect these cells that you give to the recipient from attack by the recipient's immune system?
并且至关重要,那么你们想办法保护这些植入受体的细胞,使它们免受免疫系统的排异反应么
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And how the cells shutdown is they actually die Harris Perlman says a protein in healthy immune cells causes them to die after they attack an invading virus or bacteria.
VOA: special.2010.03.16
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So, this is an immune response that doesn't have to be activated and we're used to thinking about immune responses that have to be activated.
所以 这是一种不必激活的免疫反应,我们曾认为免疫反应都需要激活
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The immune system is supposed to protect the body.
VOA: special.2010.11.16
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You could imagine that you've got virus that's propagating inside your cells, making more and more virus, your immune system really responds well to that.
你可以想象,病毒在你的体细胞内繁殖,数量越来越多,你的免疫系统对此反应非常之强烈
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The innate immune system composed of neutrophils and macrophages; these are cells that are crawling around your body all the time ready to eat bacteria.
它由嗜中性粒细胞和巨噬细胞构成,这些细胞不断在周身蠕行,准备吞噬细菌
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