The world's longest tunnel will take shape deep beneath the Swiss Alps on Friday when a giant drilling machine clears a path for a key high speed railway through the heart of Europe.

在巨大的钻孔机清理出一条小道后，横贯瑞士阿尔卑斯山下方世界上最长的隧道终于成形。这条隧道将建设成为穿过欧洲心脏地带的高速铁路通道的关键路段。

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In case of urban road development process often beneath existing railway overpass project, the rational design of rainwater pump station is the key element of safe operation in crossing engineering.

城市道路拓展过程中常遇有下穿既有铁路线立交桥工程，雨水泵站的合理设计是下穿工程安全运行的关键要素之一。

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The underground passage beneath the Changchun Railway Station, goes mainly through the plastic clay stratum. The construction is full of difficulty.

长春站南北广场地下通道位于软土地层并穿越铁路站场，施工难度大。

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Beneath a railway bridge, Swiss artist Franziska Furter's "Mojo" (2012), a colorful concoction of magic amulets, hangs like a chandelier, moving and tinkling with the wind.

WSJ: Collecting: 'Art and the City' Show

Not to be outdone by these century bonds, Eurotunnel, the beleaguered company that operates the railway beneath the English Channel, is trying to tempt investors with a millennium's worth of profits.

ECONOMIST: From here to eternity

Beneath us was a railway line and in front of us, Circular Quay, the tourist hub of Sydney, from where quaint green and gold ferries plough their way across the harbour.

BBC: Subterranean Sydney