vt. 1.使晦暗，使丧失光泽。 2.使生锈，使变色。 3.玷污，败坏(名誉等)。 vi. 变晦暗，(丧)失(光)泽，生锈，变色。 n. 晦暗，锈；表面变色；污点。 adj. -able
discoloration of metal surface caused by oxidation
make dirty or spotty, as by exposure to air; also used metaphorically; "The silver was tarnished by the long exposure to the air"; "Her reputation was sullied after the affair with a married man" 同义词：stain, maculate, sully, defile,
Tarnish is a thin layer of corrosion that forms over copper, brass, silver, aluminum, and other similar metals as their outermost layer undergoes a chemical reaction. Tarnish does not always result from the sole effects of oxygen in the air.
例句与用法
1.
Next she tried to study herself in the mirror enclosed in a tarnished wreath of gilt plaster . 随后她在一个金漆已经变色的圆镜子面前仔细地端详自己。
2.
His mere presence seemed to recall to them the memory of the innocence that they had tarnished . 他一到场，就使他们想起给他们玷污了的天真无邪的人。
3.
Today the concept has been somewhat tarnished by its abuse in nazi and soviet art policy . 如今这一概念由于在纳粹和苏维埃艺术政策中被滥用而显得黯然失色了。
4.
Over the west hung the wasting moon, now dull and greenish-yellow, like tarnished brass . 此时，西方的天空挂着一勾残月，它黯然无光，黄中透绿，象是一块蒙了锈的黄铜。
5.
Already had his fair fame been tarnished by one horrid scene, and in circumstances fear-fully resembling these under which he now found himself . 他想起自己的名声已经经受过一次损害，那一次可怕的情景和眼下的情况十分相似。
6.
9 when silver on tables is spotted or tarnished 上了台的银餐具有污点或色泽晦暗。
7.
Standard test method for silver tarnishing by paper 用纸对银失去光泽的标准测试方法
8.
I wouldn ' t wanna tarnish my towel - boy reputation 我不想破坏自己“后勤男孩”的形象
9.
His reputation has been tarnished by their slanders 他的名誉因他们的中伤而受玷污。
10.
The firm ' s good name was badly tarnished by the scandal 这件丑事玷污了公司的好名声
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