whiten

verb

/ˈwaɪtn/

[intransitive, transitive]

动词形式

present simple I / you / we / they whiten	/ˈwaɪtn/ /ˈwaɪtn/
he / she / it whitens	/ˈwaɪtnz/ /ˈwaɪtnz/
past simple whitened	/ˈwaɪtnd/ /ˈwaɪtnd/
past participle whitened	/ˈwaɪtnd/ /ˈwaɪtnd/
-ing form whitening	/ˈwaɪtnɪŋ/ /ˈwaɪtnɪŋ/

to become white or whiter; to make something white or whiter（使）变白，变得更白
- He gripped the wheel until his knuckles whitened.他紧紧握住方向盘，握得指关节都变白了。
- Her face whitened when she heard the news.当她听到这个消息时，她的脸变白了。
- whiten something Snow had whitened the tops of the trees.大雪把树冠变成了白色。