monomania

n [U] state of mind in which a person is obsessed with one idea or subject 单狂; 偏狂.

monkey, monkey business, monkey-nut, monkey-puzzle, monkey-wrench, monkish, mono, monochromatic, monochrome, monocle, monocotyledon, monogamous, monogamy, monogram, monogrammed, monograph, monolingual, monolith, monolithic, monologue (US also monolog), monomaniac, monophonic, monophthong, monoplane, monopolist, monopolistic, monopolization, monopolization, monopolisation, monopolize, monopolize, monopolise, monopoly, monorail, monosodium glutamate, monosyl-labically, monosyllabic, monosyllable, monotheism, monotheist, monotheistic, monotone,