subsidence
noun [ U ] uk/səbˈsaɪ.dəns/ /ˈsʌb.sɪ.dəns/ us/səbˈsaɪ.dəns/ /ˈsʌb.sə.dəns/
(地面或建筑物的)下沉,沉降
the process by which land or buildings sink to a lower level
The building had to be demolished because of subsidence. 这栋大楼因为沉降的原因必须拆除。