monomania
柯林斯詞典
1. N an excessive mental preoccupation with one thing, idea, etc 偏執(zhí)狂
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monomania /?m?n???me?n??/
劍橋詞典
- a condition in which someone is extremely interested in one thing, in a way that is not normal
偏狂；狂熱 返回 monomania