柯林斯词典whiten /ˈwaɪtən/ (whitening,whitened,whitens) 1. V-T/V-I When something whitens or when you whiten it, it becomes whiter or paler in colour. 變白; 使變白 Her knuckles whiten as she clenches her hands harder. 她的手握得越來越緊，指節都變白了。 ...toothpastes that whiten teeth. ...增白牙膏。 返回 whiten剑桥词典to make or become whiter （使）變白 She had her nicotine-stained teeth whitened. 她將她那被尼古丁燻黑的牙齒漂白了。 Her hair had whitened over the years . 這麽多年來她的頭發已經變白了。 返回 whiten