单词：tarnishes
v. （通常指金属）（使）失去光泽, （使）变灰暗( tarnish的第三人称单数 ); 玷污, 败坏
v make dirty or spotty, as by exposure to air; also used metaphorically
tarnish的用法和样例：
例句
- Moisture leads to the tarnish of the silverware.湿气使得银器毫无光泽。
- Check cutlery to make sure them free from tarnish and stain.检查餐具的清洁,保证光亮无污渍。
- The firm's good name was badly tarnished by the scandal.这件丑事玷污了公司的好名声。
- If news of this gets out, it will tarnish his image.如果这消息传出去
- These pessimistic predictions and doubts, however, cannot tarnish facts.但预测也好、疑问也罢，终究抵挡不住事实的光芒。
词汇搭配
- anti-tarnish paper防锈纸
- tarnish resistance抗蚀力,耐蚀性...
- tarnish film失泽膜
- anti tarnish paper防锈纸
经典引文
Many metals rapidly..tarnish when exposed to even the driest air.
出自：T. H. Huxley
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