tarnish
v
1 [I, Tn] (cause sth to) lose its brightness by being exposed to air or damp (因暴露於空氣或潮氣)(使某物)失去光澤
mirrors that have tarnished with age 因年深月久而失去光澤的鏡子
The brasswork needs polishing it's badly tarnished. 那黃銅制品該擦了--黑糊糊的.
2 [Tn] stain or blemish (a reputation, etc) 玷污, 損害(名譽等)
The firm's good name was badly tarnished by the scandal. 這件丑事玷污了公司的好名聲. tarnish, n [C, U]
loss of brightness; stain or blemish 晦暗; 污點; 瑕疵
remove the tarnish from silver 除去銀子上的污點.