详细解释:n. 失泽, 失泽膜, 污点
vt. 使失去光泽, 玷污
vi. 失去光泽, 被玷污
词型变化：
动词过去式:tarnished过去分词:tarnished现在分词:tarnishing第三人称单数:tarnishes形容词:tarnishable英语解释：
名词 tarnish:
discoloration of metal surface caused by oxidation动词 tarnish:
make dirty or spotty, as by exposure to air; also used metaphorically同义词：stain, maculate, sully, defile