潜在的致病基因有很多，但是至于它们起了什么作用，又是如何发生相互作用的，在很大程度上仍然是个谜。
There have been many candidates, but just what they do and how they interact is still largely a mystery.
即使我们忽略这种恶意的程序员，由于我们所做出的改变存在着许多副作用，许多错误仍然可能发生。
Even if we ignore malicious programmers, many defects occur because there are unwanted side effects of changes we make.
由于解毒作用需要能量，所以缓慢的腐朽仍然会发生。
Whilst the detoxification requires energy, slow decay may still occur.
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