Jek·yll and HydeBrE/ˌdʒekl ən ˈhaɪd/NAmE/ˌdʒekl ən ˈhaɪd/noun[sing.]apersonwhoissometimesverypleasant (Jekyll) andsometimesveryunpleasant (Hyde) orwholeadstwoveryseparatelives两重性格交替出现的人；具有善恶双重人格的人Expressions from literary sourcesAlice in Wonderland,Casanova,Cassandra,Don Juan,Dorian Gray,Falstaffian,Frankenstein,Jekyll and Hyde,Lilliputian,Lothario,Orwellian,Pandora’s box,Peter Pan,Pied Piper,Pollyanna,Rip Van Winkle,Ruritanian,Scrooge,Shangri-La,Sherlock,Stepford Wife,Svengali,Tweedledum and Tweedledee,Utopia,Walter MittyORIGINFromthestorybyRobertLouisStevenson, DrJekyllandMrHyde, inwhichDrJekylltakesadrugwhichseparatesthegoodandbadsidesofhispersonalityintotwocharacters. AllthenegativeaspectsgointothecharacterofMrHyde.源自罗伯特 · 路易斯 · 史蒂文森的小说《化身博士》，小说中哲基尔医生服用了一种药，把他性格中的善与恶分在两个人物身上，所有的恶念都分给了海德先生。