discolor

• 动词，指颜色发生变化或失去原有颜色的过程，常因时间、暴露或损坏所致。

A verb used to indicate the process of changing or losing color, often due to age, exposure, or damage.

1. Change colorB2formal

   To change or lose the original color, often in a way that is undesirable.

   变色

   • The sun can discolor your curtains over time.
   • Bleach can discolor dark fabrics if used incorrectly.
   • The old photograph had discolored with age.

   同义词bleachdarkenfadespotstaintarnishtingeyellow

2. Stain or tarnishB2formal

   To cause something to become stained or marked, altering its appearance.

   使变色或玷污

   • The spilled wine discolored the white tablecloth.
   • Rust can discolor metal surfaces.
   • The chemical reaction discolored the solution in the test tube.

   同义词blemishdirtysmudgesoilspotstainsullytarnish

   反义词bleachcleanwhiten