'You know as well as I do that your wife is above suspicion'.

“你和我一样清楚， 你的妻子是无可怀疑的” 。

He wanted her to know that here too his conduct should be above suspicion.

他知道， 他的行为在这里也应是无可怀疑的。

" Don't you remember? When I cited her and John Cavendish as being above suspicion" ?

“你不记得了吗？当我引用和约翰·卡文迪什时， 他们是无可怀疑的” ？

Its animal nature isn't in doubt, and we can't accept even the views of the ancients, who regarded it as halfway between plant and animal.

它的动物性是无可怀疑的，我们不能接受古代人的意见，认为它是动植物间的中介物。