，Eight alloys were measured before and after tarnish by chromometer.
探讨低贵合金变色的影响因素。
)失去
；()变灰暗
态: tarnished, tarnishing, tarnishes Eight alloys were measured before and after tarnish by chromometer.
探讨低贵合金变色的影响因素。
Moisture leads to the tarnish of the silverware.
气
得银器毫无
。
His bad behaviour has tarnished the good name of the school.
他行为不轨, 败坏了学校的声誉。
Brass tarnishes quickly in wet weather.
天气潮
铜很快会失去。
His reputation was tarnished.
他的声誉受到玷污。
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