This does NOT mean the breed is vicious—quite the contrary, the doberman must be mentally stable yet always alert and ready to defend its master and home.

但是这并不代表这个品种是凶恶的，恰恰相反，杜宾必须在精神方面非常稳定，时时警觉，随时准备护卫主人和他的财产。

youdao

Mentally, she is not very stable.

她的心理状态不十分稳定。

《牛津词典》

Mentally she's very stable.

她情绪十分稳定。

youdao

This way your mentally stable enough to make the right decisions as we move forward for the rest of this year.

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Family members, because of the publicity around CTE and suicide, may assume that you are not mentally stable and are on the verge of taking drastic measures.

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So fine, you somehow manage to find enough competent, mentally stable people to guard every school in the country five days a week for eight hours a day.

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