(of a person)of sound mind; not mad or mentally ill
(人)心智健全的,神志正常的;不疯的,无精神疾病的
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hard work kept me sane .努力工作使我心智正常。
(of an undertaking or manner)reasonable; sensible
(行为)明智的,清醒的;合情合理的。
"early 17th cent.: from Latin