insane: implies that one is unable to function safely and competently in everyday life and is not responsible for one's actions: adjudged ~ after a period of observation.       (adjudge宣判，如he was adjudged guilty他被判有罪)


mad: strongly suggests wildness, rabidness, ravings, or complete loss of self-control: drove her husband ~ with jealousy.


crazy: may suggest such mental breakdown as comes from old age or may suggest a distraught or wild state of mind induced by intense emotion: ~ with grief; when applied to a scheme, project, or notion, it usually suggests the product of a disordered mind: got those ~ ideas into her head.     (distraught心烦意乱)


crazed: often used instead of crazy, implies the existence of temporary disorder, usually with a specific cause: stampeding cattle ~ with fear.     (stampede奔逃踩踏)


demented: suggests mental unsoundness that manifests itself by apathy or incoherence in thought, speech, or action: years of solitary confinement had left him ~.


deranged: stresses a clear loss of mental balance or order resulting in a functional disorder: assassinated by a ~ anarchist.


lunatic: may be the equivalent of insane or may imply no more than extreme folly: invested in one ~ scheme after another.


maniac: is close to mad and often suggests violence, fury, or raving: once behind the wheel, she turns into a ~ driver.


insane: 无法安全正常生活，无法为自己负责，mad: 强烈指示野狂失控，crazy: 精神崩溃、情绪狂野，形容想法计划时表示病态头脑的产物，crazed: 和crazy互换，表示暂时的失常，常带有原因，demented: 精神不健康，冷漠思维不连贯，deranged: 精神明显失衡无序，导致功能异常，lunatic: 和insane同义，或者仅表示极端愚蠢，maniac: 和mad相似，表示暴力狂野


记忆方法: 1) 首字母IL CMDCMD写成IL2 CMD病态命令<==疯狂

        2) 疯狂的意思是精神不健康不能理性思考mean having or showing an unsound mind or being unable to control one's rational processes.首字母IL CMDCMD写成IL2 CMD病态命令<==疯狂