vt.

1. 使失去光澤，使變灰暗
   Air and moisture tarnish silver.

   空氣和潮濕使銀子失去光澤。

2. 敗壞，玷汙（名譽等）
   The scandal tarnished his reputation.

   醜聞敗壞了他的名譽。

vi.

1. 失去光澤，變灰暗
2. 蒙受恥辱，被玷汙

n.[S]

1. 晦暗，無光澤
2. 玷汙；汙點
3. （金屬表面的）失澤膜

v.

1. lose or cause to lose lustre, especially as a result of exposure to air or moisture.
2. make less valuable or respected:
   they make up negative stories to tarnish my image.

n.