He was afraid that the sky might collapse, the land might cave in and he would have no place to live.
他害怕天会塌下来，地会陷下去，自己会没有地方生存，急得饭也吃不下，觉也睡不好。
The geological disaster, such as cave of karst, rushing water and collapse often occur in tunnel excavation.
隧道在施工中不可避免地会遇到诸如溶洞、突水、坍塌等常见的地质灾害。
Devastating effects on the road embankment stability and deformation were concerned because of the karster cave collapse resulting in obvious ground deformation.
溶洞坍塌之后造成的地表变形和移动对路基的稳定性影响较大，必须对溶洞进行工程处理。
Cave, soil cave and the collapse caused by them have been paid more and more attention in Karst region.
岩溶区的溶洞、土洞及其产生的塌陷越来越受到人们的关注。
The research shows that the induced factors of karst collapse are the clay cap beds, the karst cave and the pumping of the groundwater in the area.
研究表明，覆盖粘土层、岩溶及人工疏降地下水，是该地区岩溶塌陷形成的基本条件。
He was afraid that the sky might collapse, the land might cave in and he would have no place to live. He was so worried that he could neither eat nor sleep.
他害怕天会塌下来，地会陷下去，自己会没有地方生存，急得饭也吃不下，觉也睡不好。
He was afraid that the sky might collapse, the land might cave in and he would have no place to live. He was so worried that he could neither eat nor sleep.
他害怕天会塌下来，地会陷下去，自己会没有地方生存，急得饭也吃不下，觉也睡不好。
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