reddens
v. (使)变红( redden的第三人称单数 ); (由于羞愧、愤怒、天气热等)脸变红
If someone reddens or their face reddens, their face turns pink or red, often because they are embarrassed or angry.
He was working himself up to a fury, his face reddening...
他勃然大怒,脸涨得通红。
She reddened instantly...
她的脸立刻红了。