In his defense he alleged temporary insanity.

他伪称一时精神错乱,为自己辩解。

There was a streak of insanity in the family.

这个家族有精神错乱的倾向。

The legal concept of insanity is of a different nature from the medical.

精神错乱的法律概念与医学概念在性质上是同的。

Did you ever apply for exemption from Military service because of alienage, conscientious objections or other reasons?

你曾否由于精神错乱、良心安或其他理由而申请免役？

Grief distracted him.

悲伤使他精神错乱。