tarnish

tarnish
verb
  1. lose or cause to lose lustre, especially as a result of exposure to air or moisture
    (使)失去光泽
    [no obj.]silver tarnishes too easily.
    银很容易失去光泽。
    [with obj.]lemon juice would tarnish the gilded metal.
    柠檬汁会使镀金金属失去光泽。
    ■(figurative)make or become less valuable or respected[with obj.]
    (喻)败坏;玷污
    his regime had not been tarnished by human rights abuses.
    他的政权并没有因为践踏人权而名誉受损。
noun
  1. [mass noun]dullness of colour; loss of brightness
    色泽单调;色泽变暗
    ■a film or stain formed on an exposed surface of a mineral or metal
    (矿物,金属上的)失泽膜
    ■(figurative)damage or harm done to something
    (喻)瑕疵,污点
派生
tarnishable
adjective
语源
  1. late Middle English (as a verb): from French terniss-, lengthened stem of ternir, from terne 'dark, dull'
英语宝典
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