The model also showed that once those T cells are released into the bloodstream, they can effectively attack HIV proteins, even when the virus mutates.

这个模型显示，一旦T细胞释放入血，它们就可以强烈攻击HIV蛋白，即使它们已经变异了。

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After organ transplants, t cells can attack the donor organ as a 'foreign invader'.

器官移植后，T细胞把捐赠器官当作‘外来入侵者’进行攻击。

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In autoimmune diseases, like arthritis or Crohns disease, t cells mistake fragments of the body's own cells for foreign invaders, leading to the body launching an attack upon itself.

在自身免疫系统疾病中，如关节炎或克隆恩氏病，T细胞误把自身细胞碎片当作外来入侵者，导致自己攻击自己。

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"This material doesn't just reveal abuses, this material describes the past six years of war, every major attack that resulted in someone being detained or someone being killed."

VOA: special.2010.07.31

First it was warning shots, but when the Mavi Marmara wouldn't stop, these warnings turned into an attack.

VOA: standard.2010.06.01

"When the forces of the TFG attack al-Shabab and score victories, we don't care from which geographical positions they start the attack,".

VOA: standard.2009.08.20

If a BBC presenter can't attack a nasty Tory politician, what's the world coming to?

BBC: Boris Johnson: BBC interview was splendid

Obama said the voters would judge Republican VP candidate Sarah Palin, but didn't attack her at all.

NPR: The Hatchet And The Scalpel: A Debate Parable

His explanation of why he can't attack Mr Obama full-throttle is particularly interesting.

BBC: Mitt Romney scorns Obama voters