Part of a bridge under construction in Vietnam's southern Mekong region collapsed Wednesday, killing more than 20 people.

越南南部永隆地区一座正在构筑中的年夜桥本日坍塌，20多人死亡。

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Marine construction technology like this is very complex, somewhat analogous to trying to build a bridge under water.

像这样的海洋建筑技术非常复杂，有些类似于尝试在水下建筑一座桥。

《柯林斯英汉双解大词典》

According to later information, I know that the construction thoughts is: First, construct a removable bridge made of reinforced concrete, then move it entirely under the railway.

根据后来的了解，得知桥的建设思路是，首先在铁路东侧构建一个钢筋混凝土桥体，然后采用整体推移的方法，将其挪到铁路底下。

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In February, three workers were killed and six injured when a concrete block of a bridge under construction at Mumbai's international airport collapsed.

WSJ: Building Collapse Kills 50 in Mumbai Suburb

That came after the collapse of a bridge that was under construction as part of the city's mass-rapid transport system in September last year, killing one person.

WSJ: Death Toll in Mumbai Building Collapse Hits 74

That came after the collapse of a bridge that was under construction as part of the city's mass-rapid transport system in September last year, killing at least one person and injuring several.

WSJ: Building Collapse Kills 50 in Mumbai Suburb