不懂, 瞎担心一下, 泳池下, 水断断续续下去, 会形成sinkhole吗?

What causes sinkholes?
 
Sinkholes are all about water.

(This is called "weathering".) Water washes away the soil and residue from the voids in the rock. Lowering of groundwater levels can cause a loss of support for the soft material in the rock spaces that can lead to collapse.
 
 
 

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