tarnish词根词缀

tarnish

[ˈtɑːnɪʃ]

vt.& vi.（通常指金属）（使）失去光泽，（使）变灰暗;

vt.玷污，败坏;

n.污点，瑕疵;无光泽，晦暗;

复数： tarnishes 过去式： tarnished 过去分词： tarnished 现在分词：tarnishing 第三人称单数： tarnishes

英文例句/中文翻译：

1、

So would buying a brand with a reputation as one of the safest cars in the world buck up a Chinese buyer or tarnish Volvo?

因此，收购沃尔沃这个享有全球最安全汽车之一盛誉的汽车品牌是会提振中国收购方，还是会令沃尔沃的荣耀蒙羞？

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2、

The affair could tarnish the reputation of the prime minister

这一事件可能有损首相的名誉。

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3、

The semi-bright Ag-RE ( silver-rare earth) composite deposits have the properties of higher hardness and wear resistance, greater adhesive strength, higher tarnish resistance, as well as lower porosity and lower contact resistance than pure silver plating layers.

这种银&稀土（Ag-RE）复合镀层比镀银层硬度高、耐磨，结合力和抗变色性能强，而且孔隙率和接触电阻都较低。

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