coppers FREQ #14008 n. 铜( copper的名词复数 ); 铜币 释义与例句 n. 1. plural of copper 相关短语 hot coppers small coppers white coppers scarce coppers cement coppers bent coppers Austrian coppers scarce copper small copper cement copper [化] 渗碳铜 white copper bent copper arsenical copper [机] 砷铜 Austrian copper bronze copper