详细解释:n. 铜板, 铜版, 铜板印刷
a. 工整的
英语解释：
名词 copperplate:
a graceful style of handwriting based on the writing used on copperplate engravingsa print made from an engraved copperplatean engraving consisting of a smooth plate of copper that has been etched or engraved同义词：copperplate engraving