Mental means relating to the process of thinking.
The intellectual environment has a significant influence on the mental development of the children.
知识环境对孩子智力的发展有着重大的影响。
intensive mental effort.
高强度的智力活动。
Mental means relating to the state or the health of a person's mind.
The mental state that had created her psychosis was no longer present.
导致她精神错乱的那种心理状态已经不见了。
mental health problems.
心理健康问题。
A mental act is one that involves only thinking and not physical action.
Practise mental arithmetic when you go out shopping.
外出购物时练习一下心算。