有些是学习用的，有些是娱乐用的。
介绍一种可以制作纪念币以及娱乐用币材料的软质铁素体不锈钢。
A soft ferritic stainless steel was introduced which could be manufactured for the commemorative and entertaining coin.
娱乐用大厦：一座大的，通常是装饰华丽的建筑物，用来娱乐或展览。
A large, often gaudily ornate building used for entertainment or exhibitions.
应用推荐