Zhè / zuò / chóng / lóu / gòng / yǒu / sān / céng / měi / céng / dōu / yǒu / kuān / chǎng / de / fáng / jiān

这座重楼共有三层，每层都有宽敞的房间。

This multistory building has three floors, each with spacious rooms.