The town's old quayside is collapsing after years of neglect. 鎮上老碼頭區多年來疏於維護，快要塌陷了。
It was a marvel that the floor never gave way. 驚奇的是地板居然從未塌陷。
Rescuers used props to stop the roof of the tunnel collapsing. 救援人員用支柱防止隧道頂塌陷。
After the heavy rains, part of the road subsided. 大雨過後，部分公路塌陷了。
His cellar caved. 他的地窖塌陷了。
The house lapsed into ruin. 那房屋塌陷成一堆廢墟。
The roof of the tunnel caved in. 隧道的頂部塌陷了。
The ice gave under his weight. 冰層支撐不住他的重量塌陷了。
There were deep furrows in the cheeks, the cheekbones felt sharp, the nose flattened. 臉頰上有很深的皺紋，顴骨高聳，鼻子塌陷。
Collapse is a typical geologic disaster in karst area. 塌陷是喀斯特地區常見的地質災害。