The soles are made of leather.鞋底是皮革做的。The grit beneath her soles grated harshly on the wooden deck.粘在她鞋底的沙砾蹭在木甲板上发出刺耳的声音.The soles of his feet were raw with chilblain.他的脚底生了冻疮很疼痛....
Air-entraining agent increases impermeability of hybrid fiber concrete.引气剂有助于提高混杂纤维混凝土的抗渗性。Even an air - entraining agent can be used because the minute pores are discontinuous.甚至可以使用加气剂,因为小的气孔是不连通的.Third, the option of ...