The town's old quayside is collapsing after years of neglect.

这座小镇的旧码头区在多年疏于保养后快要坍塌了。

Rescuers used props to stop the roof of the tunnel collapsing.

救援人员用支柱防止隧道顶塌陷。

The building is in danger of collapsing.

这栋建筑有垮塌的危险。

He made it to the summit of Kilimanjaro before collapsing.

他成功登上乞力马扎罗山峰顶后倒下了。

There is some risk of the lung collapsing again, but he is out of danger.

肺部的确存在再次衰竭的危险，但他脱离危险期了。