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	dioestrousser dioestroussest dioestrual dioestrualer dioestrualest dioestrualler dioestruallest dioestrum dioestrus dioestruses Diogenean Diogenes Diogenes crab diogenic diogenite dioicous diol diolefin diolefins diols diomate Diomede Islands Diomedea Diomedeidae diomedeidaes

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