concrete floor短语⁵⁸⁰⁷⁵ 基本例句 混凝土楼板 But I know, in the fence behind, the South China Tiger had walked for many years… strong concrete floor had already frayed his sharp claws. 但我知道华南虎在栏栅的背后已经走了很多年，坚强的水泥地早已经磨破了它的利爪。 blog.sina.com.cn The house is heated by a radiant concrete floor. 室内采用辐射地板供暖。 dooland