whitening
柯林斯词典
1. V-T/V-I When something whitens or when you whiten it, it becomes whiter or paler in colour. 变白; 使变白
Her knuckles whiten as she clenches her hands harder. 她的手握得越来越紧，指节都变白了。
...toothpastes that whiten teeth. ...增白牙膏。
返回 whitening
1. V-T/V-I When something whitens or when you whiten it, it becomes whiter or paler in colour. 变白; 使变白
Her knuckles whiten as she clenches her hands harder. 她的手握得越来越紧，指节都变白了。
...toothpastes that whiten teeth. ...增白牙膏。