tarnish的经典引文是：Many metals rapidly..tarnish when exposed to even the driest air.出自：T. H. Huxley。tarnish的英英释义是Noun:discoloration of metal surface caused by oxidation。tarnish【近义词】stain污点。
一、英英释义点此查看tarnish的详细内容
"The silver was tarnished by the long exposure to the air"
"Her reputation was sullied after the affair with a married man"
二、网络解释
1. 变色：浸镀银层在空气中碰到微量的硫气时即容易变色(Tarnish),为了防变色以及防止银金属的快速迁移(Leaching)甚至破坏绝缘起见,刻意在浸银层表面上生成一薄层有机性保护膜,以堵绝此等缺失.
2.
2. 金属变色：16 硬度 hardness | 17 金属变色tarnish | 18 点滴腐蚀试验 dropping corrosion test
3. 变暗：target 标志 |tarnish 变暗 | tarragon oil 龙蒿油
三、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。
四、词汇搭配
五、经典引文
Many metals rapidly..tarnish when exposed to even the driest air.
出自：T. H. Huxleytarnish的相关近义词
stain、discolor、smear、taint、dull、soil、dim、fade、sully、discolour、smudge、blot、blemish、damage、shame、harm、destroy、spoil、stigma、pollute、cloud、ruin、impute、daub、defile、maculate
tarnish的相关临近词
taro、tarn、tarnishing、tarnishable、tarnishproof、tarnish film、tarnished bug、tarnished image、tarnishresistant、tarnished mirror、tarnishing action、tarnish inhibitor