It's not only a bridge but includes a tunnel and two islands.

它不仅是一座桥，还包括一条隧道和两座岛屿。

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In one part, the bridge turns into a 6.7km undersea tunnel that passes through two man-made islands.

这座桥的一部分是一条长6.7公里的海底隧道，横穿两座人造岛屿。

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Being able to detect damage to a bridge or tunnel and report it automatically would be very useful.

能发觉损坏的桥或隧道并主动把其记录下来，这举动将会非常有用。

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These days using a Yahoo e-mail address carries all the cultural cachet of carrying a Zune, signaling membership in the bridge-and-tunnel crowd of the tech world.

FORBES: Study: Yahoo E-Mail Users Use More Energy Than Gmailers

In return, Danes, with a krone of their own (both countries belong to the European Union, but neither uses the euro), are increasingly taking the Oresund bridge-and-tunnel into Sweden to buy low-taxed children's shoes and clothing.

ECONOMIST: Scandinavian shoppers

If you limit the crossings to only those in the immediate Detroit area (Ambassador Bridge and the Detroit-Windsor Tunnel) then the Ambassador Bridge provides 97% of the truck traffic and 53% of the passenger traffic.

FORBES: The Ambassador Bridge �C A Gateway to Commerce and Conflict