1[transitiveT]HCMSPOIL if an event or fact tarnishes someone’s reputation, record, image etc, it makes it worse 玷污,败坏,损害〔名誉、形象等〕
His regime was tarnished by human rights abuses.
他的政权因践踏人权而形象受损。
2[intransitiveI, transitiveT]SHINE if metals such as silver, copper, or brass tarnish, or if something tarnishes them, they become dull and lose their colour (使)〔银、铜等金属〕失去光泽,变暗淡