tarnished

v.

（通常指金属）（使）失去光泽，（使）变灰暗( tarnish的过去式和过去分词 )；玷污，败坏；

1. Moisture leads to the tarnish of the silverware.
   湿气使得银器毫无光泽。
2. Check cutlery to make sure them free from tarnish and stain.
   检查餐具的清洁,保证光亮无污渍。

1. The firm's good name was badly tarnished by the scandal.
   这件丑事玷污了公司的好名声。
2. If news of this gets out, it will tarnish his image.
   如果这消息传出去
3. These pessimistic predictions and doubts, however, cannot tarnish facts.
   但预测也好、疑问也罢，终究抵挡不住事实的光芒。

Taxonomic parameters revisited : tarnished gold standards
Host Plants of the Tarnished Plant Bug, Lygus lineolaris (Heteroptera: Miridae)
Effects of Age, Sex, and Reproductive Status on Flight by the Tarnished Plant Bug (Heteroptera: Miridae)
Glass-Vial Bioassay To Estimate Insecticide Resistance in Adult Tarnished Plant Bugs (Heteroptera: Miridae)
Insecticide Resistance in Field Populations of the Tarnished Plant Bug (Heteroptera: Miridae) in Cotton in the Mississippi Delta
Host Plants and Seasonal Distribution of the Tarnished Plant Bug (Hemiptera: Miridae) in the Delta of Arkansas, Louisiana, and Missi...
Seasonal changes in pyrethroid resistance in tarnished plant bug (Heteroptera: Miridae) populations during a three-year period in th...
Enhanced esterase gene expression and activity in a malathion-resistant strain of the tarnished plant bug, Lygus lineolaris
Cytochrome P450 CYP6X1 cDNAs and mRNA expression levels in three strains of the tarnished plant bug Lygus lineolaris (Heteroptera: M...
Characterization of Beauveria bassiana and Metarhizium anisopliae isolates for management of tarnished plant bug, Lygus lineolaris (...