Had he been suspected of some kind of nefarious behavior in the past?

他是否曾被怀疑犯下某种罪恶行为？

Historical events we all know to be true are denied by individuals with nefarious motives.

我们公认的历史事实也被别有用心之人矢口否认。

Scientists prefer to attribute this to convenient light levels for the plying of nefarious activity.

科学家们更倾向于把这归因于为从事不法活动提供了便利的光照水平。

And noted that they are aware that the full model could be used for nefarious purposes.

注意，他们确实意识到一些人可能出于非法目的利用完整的模型。

Get a small brown bag to conceal any contents, and a plastic bag to catch any nefarious waste.

找一个棕色的小纸袋来装这些东西，内部套一个塑料袋来装这些污浊物。

None of these seems particularly nefarious.

这些似乎都不是特别邪恶。

So there was nothing nefarious about it.

所以这并没有什么恶意。

I think there's some more nefarious creatures.

我认为还有一些更邪恶的生物。

Massaging techniques can be used to nefarious ends.

按摩技术可以用来达到邪恶的目的。

Of course, any new technology could be used in a nefarious way.

- 当然，任何新技术都可能被用于邪恶的目的。