You're just a kid, and he's like a mental case.

你们还只是孩子，而他是个疯子。

youdao

Case studies of children who are isolated from others reveal that they lack a firm self-concept, and their mental and psychological development is severely hindered by lack of language.

对孤立儿童的个案研究表明，他们缺乏坚定的自我概念，而其语言能力的缺乏严重阻碍了他们的智力和心理发展。

youdao

Although he cannot offer a mental diagnosis or legal opinion in the Powers' case, he can discuss the motivations of parents who kill and what we know about them.

尽管他无法对帕瓦斯一案提供任何精神诊断或法律意见，他可以谈一谈关于那些杀死子女的父母们，他们的动机是什么，以及到目前对他们的一些了解。

youdao

"Before I think you all thought I'm a mental case, " she told the crowd after defeating Clijsters.

WSJ: Why Complain When Tennis Girls Just Want to Have Fun?

The bioethicists are making a pretty safe bet, because the odds of finding a reputable medical expert who will say a case of mental disability was caused by Gardasil is close to nil.

FORBES: Bioethicist Offers $10,000 Reward For Proof of Bachmann Vaccine Claims

The only way to do that, he believes, is to draw on economic theory and a mental database of case studies.

ECONOMIST: South Korea��s future, in miniature