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.
雙語例句
1. Her knuckles whiten as she clenches her hands harder.
她的手握得越來越緊，指節(jié)都變白了。
來自柯林斯例句
2. I must whiten my tennis shoes.
我得把我的網(wǎng)球鞋刷白.
來自《簡明英漢詞典》
3. Use: Used to wash, condense and whiten the pulp.
用途: 適應(yīng)于漿料的洗滌 、 濃縮和漂白.
來自互聯(lián)網(wǎng)
4. Accelerate cells reproduce, soften skin, keep the skin wet and whiten.