单词	acorn nut
释义	acorn nut noun hardware : a nut with a dome-shaped head that is used to cover the threaded end of a bolt … few things are more beautiful to car buffs than the sight of two long polished cam covers held down by acorn nuts. Bill Vance, Toronto Star, 2 Jan. 1988 Word History First Known Use 1890, in the meaning defined above
随便看	self-opinionated self-opinionatedness self-opinionative self-opinionativeness self-opinioned self-opinionedness self-or self-ordained self-organization self-oriented self-originated self-originating self-paced self-paid self-parodies self-parodist self-parodists self-parody self-partiality self-pay self-paying self-pays self-penned self-per self-perception

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