不要任性行事，研究一下自己的问题。

Don't act on caprice. Study your problem.

youdao

我告诫她不要懒惰，不要怯懦，不要任性，不要让人觉得可悲。

I told her to stop being lazy, cowardly, self-indulgent, and pathetic.

youdao

他病得很严重，而且事先没有和我商量，不然的话我能会强烈建议他不要任性妄为。

He was very sick, and he didn't talk to me about it ahead of time or I would have probably suggested strongly that he not go ahead with it.

youdao