c. 1300, "to make white," from white (adj.) + -en (1). Intransitive sense "become white" is from 1630s. Earlier verb was simply white (late Old English). Related: Whitened; whitening; whitener.
实用例句
1. Her knuckles whiten as she clenches her hands harder.
她的手握得越来越紧，指节都变白了。
来自柯林斯例句
2. I must whiten my tennis shoes.
我得把我的网球鞋刷白.
来自《简明英汉词典》
3. Use: Used to wash, condense and whiten the pulp.
用途: 适应于浆料的洗涤 、 浓缩和漂白.
来自互联网
4. Accelerate cells reproduce, soften skin, keep the skin wet and whiten.
促进细胞活跃再生, 柔软肌肤表层,补充水分,滋养美白, 令肌肤亮泽而富有弹性.
来自互联网
5. To whiten ( a metal ) soaking in acid or by coating with tin.
