旅游建设项目：大峡谷铁链桥、直升飞机旅游项目、水上游乐项目和冰川遗迹地质博物馆。

Establishments projects of tourism: iron chain bridge above the canyon, whirlybird tour project, water amusement, and geographic museum of glacier relics.

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我们在伦敦桥停下车来，这是一座双拱桥梁，外延部分在1990年垮塌了。 当时有一对男女被困在桥那一边，只能由直升飞机前来救援。

We stopped at London Bridge, a double-arched formation whose outer span collapsed in 1990, stranding a couple on the other side so that they had to be rescued by helicopter.

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