zhè / dòng / zhù / zhái / lóu / yí / gòng / èr / shí / céng / zhù / zhe / hěn / duō / nián / qīng / jiā / tíng

这栋住宅楼一共有二十层，住着很多年轻家庭。

This residential building has twenty floors and is home to many young families.