When it rains, the water absorbs acids from plants and soil. These acids dissolve the limestone bedrock, opening up new cavities, forming tunnels below.

下雨时，雨水会从植物和土壤中吸收酸性物质，腐蚀石灰岩岩床，形成新的溶洞，下方也会形成地道。

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Profiled steel plates, forming the foundation shaft, were driven 15 metres into the ground and a further 3 metres into the limestone bedrock by an enormous vibrating sheeting machine.

被描绘钢碟子，形成基础桥，轮廓的被进入地面之内驾驶15公尺而且进入盖上被单机器的一个巨大振动的石灰石岩床之内驾驶还有3公尺。

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Natural sinkholes generally form when heavy, water-saturated soil causes the roof of an underground limestone cavity to collapse, or when water widens a natural fracture in limestone bedrock.

一般自然灰岩坑形成机理是由于有份量的水饱和土导致地下石灰岩洞顶层坍塌，或者由于水加宽了石灰岩床的天然裂缝而导致。

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Florida lies on bedrock made of limestone or other carbonate rock that can be eaten away by acidic groundwater, forming voids that collapse when the rock can no longer support the weight of what's above it.

CNN: Sinkhole eating family out of house and home

The state lies on bedrock made of limestone or other carbonate rock that can be eaten away by acidic groundwater, forming voids that collapse when the rock can no longer support the weight of what's above it.

CNN: Home of Florida man devoured by sinkhole to be demolished