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It never rusts or tarnishes.它从不生锈，也不会失去光泽。Brass tarnishes quickly in wet weather.天气潮湿时黄铜很快会失去光泽.This metal tarnishes easily.这种金属易变色....
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It never rusts or tarnishes...它从不生锈，也不会失去光泽。It never rusts or tarnishes.它从不生锈，也不会失去光泽。This metal tarnishes easily.这种金属易变色.Brass tarnishes quickly in wet weather.天气潮湿时黄铜很快会失去光泽....
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n.污点，瑕疵，无光泽( tarnish的名词复数 )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...