The damp atmosphere tends to tarnish the brass taps.

潮湿的空气容易使黄铜龙头失去光泽。

youdao

Say good-bye to tarnish on brass, copper, or stainless steel.

对光泽暗淡的铜器，黄铜，或者不锈钢说拜拜。

youdao

And yet Mr Bush does not allow his list of regrets to tarnish a jaunty self-assessment.

但是，布什先生不会允许这些缺憾破坏他志得意满地自我评价。

youdao

because I like my track record right now, and I don't want to tarnish it.

因为我对我目前的演艺记录很满意，我不想破坏它。

唱片即将上市 - SpeakingMax英语口语达人

Is this not going to tarnish the name and is this not going to be bad for the name?

BBC: Mandela granddaughters star in reality TV show

The trial is set to begin soon and is likely to tarnish Motorola unless it settles out of court.

FORBES: Magazine Article

Hopefully the West is wise enough to see the games underway to tarnish Georgia's image and muddy its domestic waters.

WSJ: Urmas Reinsalu: Georgian Democracy and Russian Meddling