blackening

• 指变黑或变暗的过程或结果，常因燃烧、污染、氧化或化学反应造成。也可指涂黑、抹黑，以及使某物变暗变黑的处理。

A noun referring to the process or result of becoming black or darker in color, often due to burning, staining, or chemical reaction.

不可数

1. Process of turning darkB2formal

   The act or process of becoming black or darker in color.

   变黑过程

   • The blackening of the sky signaled an approaching storm.
   • The blackening of the toast indicated it was burnt.
   • The blackening of the metal was caused by oxidation.

   同义词darkening

   反义词whitening

• 动词，指使某物变成黑色或深色，也指损害某人的名誉。

A verb used to indicate the act of making something black or dark in color, or to damage someone's reputation.

1. Make or become blackB2formal

   To cause something to turn black in color, or to become black.

   使变黑

   • The smoke from the fire blackened the walls of the room.
   • The sky blackened as the storm approached.
   • The metal blackened after being exposed to the chemical.

   同义词blackchardarkenscorchsingesmokesmudgestain

   反义词bleachwhiten

2. Burn slightly and superficiallyB2formal

   To burn the surface of something, affecting its color but not destroying it.

   烧焦

   • He blackened the steak on the grill for a smoky flavor.
   • The toast was blackened in the toaster.
   • The chef blackened the fish with a special spice rub.

   同义词charscorchsearsinge

短语动词变体blacken out