1.玷污，败坏，损害(名誉或形象) If you say that something tarnishes someone's reputation or image, you mean that it causes people to have a worse opinion of them than they would otherwise have had.
tarnished He says he wants to improve the tarnished image of his country. 他说他想改善自己国家受损的形象。
英英释义
1.discoloration of metal surface caused by oxidation
