tarnishest

['tɑ?n??]
vt.
使(金屬表面)失去光澤;使變灰暗:
Salt tarnishes silver.
鹽可使銀失去光澤。
玷污,毀壞,糟蹋(名譽等):
The political scandal tarnished the reputation of the president.
這起政治丑聞敗壞了總統的名譽。
使損壞;使低劣:
to tarnish one's memory
使喪失記憶
vi.
失去光澤;變灰暗:
The silver spoon tarnished.
銀匙失去光澤了。
被玷污;(威信等)降低:
His reputation has tarnished in literary circles.
他在文學界的聲望已經下降了。
n.
(金屬表面的)無光澤;晦暗
失澤的外表
污點;瑕疵