tarnish

柯林斯词典

1. V-T 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. 玷污; 损坏 (名声或形象)
The affair could tarnish the reputation of the senator. 这一事件可能有损那位参议员的名声。
2. tarnishedADJ 受玷污了的; 受损了的
He says he wants to improve the tarnished image of his country. 他说想改善他的国家已受损的形象。
3. V-T/V-I If a metal tarnishes or if something tarnishes it, it becomes stained and loses its brightness. 玷污; 变得有污迹
It never rusts or tarnishes. 它从不生锈，也没有污迹。