像水一样无色的液体a colourless liquid like water将无色的小片状物过滤出来,用冷的甲醇洗涤.The colorless platelets were filtered washed with cold methanol.胂是一种无色的有毒的气体需要小心地对待.Arsine is a colorless, poisonous gas that requires careful handling....
医生给伤口涂了些油膏, 伤口很快就愈合了.The doctor applied an unguent to the wound, which speedily healed it.有一系列治疗湿疹的油膏和乳膏可以买到。A range of ointments and creams is available for the treatment of eczema.他们在静脉曲张的疮口上抹了清凉的油膏.They had dressed hi...