Indeed, he was always tightly-wound, as though he were keeping tune with the threats buried beneath the ground.
2
随着水域面积缩减，地下盐层也不断溶解，导致陷坑的突然出现，这严重损坏道路桥梁，威胁生命安全。
As the sea shrinks, underground layers of salt have dissolved, leading to the sudden formation of sinkholes, which damage roads and Bridges and threaten lives.
3
开挖隧道会威胁到斯图加特的地下泉。
The tunnels threaten Stuttgart’s underground springs.
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