单词commonhold
n.: 公寓楼共有制度（住户共同拥有楼房及公用区域）网络: 形式；土地是共同拥有；共同保持
公寓楼共有制度（住户共同拥有楼房及公用区域）:
a system in which each person owns their flat/apartment in a building but the building and shared areas are owned by everyone together