He is a vicious person.

他是一个小人。

youdao

So don't assume that a vicious person just had a difficult childhood or a terrible day;

所以不要认为一个歹毒的人只不过度过了艰难的儿童时期或糟糕的一天；

youdao

Our horror increases if the person is victimized in a particularly vicious or careless way by fellow human beings.

如果这个人是被其他人以特别恶毒或极不小心的方式而受到灾难时，我们的恐惧就会更为增加。

youdao

And by the time I'm 500,I become completely self-absorbed and I'm sort of a vicious,cruel,vile person.

00岁的时候，我变得完全自私,我变得邪恶，残酷和卑鄙。

耶鲁公开课 - 死亡课程节选

The process creates a vicious cycle in which each time a person goes on a diet like McCotry's, she'll have to further lower her caloric intake in order to drop weight.

CNN: The #NYFW diet: Part of the job?