nefarious

那个犯罪团伙参与了一系列邪恶的活动。

The gang was involved in a series of ___nefarious activities.

这位首席执行官最终因欺诈投资者数百万美元的邪恶阴谋而被曝光。

The CEO was eventually exposed for his ___nefarious scheme to defraud investors of millions.

历史学家后来揭露了这位独裁者篡改国家历史的邪恶运动。

Historians later uncovered the dictator's ___nefarious campaign to rewrite the country's history.