to redden
01
变红
to become red, often in response to emotions like embarrassment, shame, or surprise
Intransitive
例子
His face began to redden when he realized he was late for the meeting.
当他意识到自己开会迟到时，他的脸开始变红。
I could see her cheeks redden when someone mentioned her achievements.
当有人提到她的成就时，我能看到她的脸颊变红。
02
变红, 变成红色
to change or turn red in color
Intransitive
例子
The sky began to redden as the sun dipped below the horizon.
当太阳沉入地平线以下时，天空开始变红。
The leaves started to redden in the fall, signaling the change in season.
树叶在秋天开始变红，标志着季节的变化。
03
变红, 染红
to cause something to turn red
Transitive: to redden sth
例子
The setting sun began to redden the sky with its warm glow.
落日开始用其温暖的光芒染红天空。
The wine spilled on the carpet, reddening the fibers instantly.
酒洒在地毯上，立刻染红了纤维。
