The external circle, entirely in travertine, is almost 50 meters high and includes four floors, each carrying arches springing from 27)pilasters.是什么意思_The external circle, entirely in travertine, is almost 50 meters high and includes four floors, each carrying arches springing from 27)pilasters.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句