insane

/ɪnˈseɪn/ 形容词 B1

中文：精神失常、精神错乱、疯狂、发狂

Exhibiting unsoundness or disorder of mind; not sane; utterly mad.
Used by or relating to insane people. · an insane hospital· an insane asylum
Causing insanity or madness.
Characterized by excess or the utmost folly; ridiculous; impractical. (informal) · an insane plan· an insane amount of money
Extremely good; incredibly amazing. (slang) · That guy is insane at FPS games.
Enraged; furious. (informal)

比较级 insaner · 最高级 insanest

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As for Cordelia, she went insane with remorse and was shut up in a lunatic asylum.

“And, moreover, my dear duke,” continued the minister of police, “we are almost assured that, in a very short time, the usurper will be insane.”

“Insane?”

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