These are a normal by-product of mitochondrial activity, but are usually mopped up by special enzymes before they can escape and cause harm—for instance, by damaging a cell's DNA.
这类物质一般是线粒体活动的副产品，但是通常都在泄露并造成伤害前被特殊的酶消灭——比如，它们可能损害细胞的DNA。
They were soon gone again, rising from their seats with an activity which took their brother by surprise, and hurrying off as if eager to escape from Mrs. Bennet's civilities.
她们一会儿告辞了，而且那两个娘儿们出于她们的兄弟彬格莱先生的意料之外，一骨碌从座位上站了起来，拔腿就走，好象急于要避开班纳特太太那些纠缠不清的繁文缛节似的。
Although there has been no real activity on ESCAPE recently, it's not dead or forgotten - it's just that our real jobs have gotten in the way (again).
尽管还没有真正应用escape，但它并没有被放弃或者遗忘——只是我们(又一次)需要处理当前手头的工作。
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