spiral staircaseˌspaɪrəlˈsteəkeɪs短语⁶⁷⁵⁵¹ 基本例句 n.螺旋梯 At its center you will find a double spiral staircase that was said to be designed by Leonardo da Vinci. 在它的中央你可以看到一座据说是达芬奇设计的双旋楼梯。 blog.sina.com.cn Image above: The focal point of the cottage is the cast-iron spiral staircase, which we commissioned. 上图:铸铁楼梯是整座别墅的焦点,是我们自己定制的。 yeeyan