A long way to go: Trift bridge in Switzerland is the longest pedestrian-only suspension bridge in the Alps at 557 feet in length.

长路漫漫：瑞士阿尔卑斯山最长的行人专用吊桥特里夫特桥长557英尺。

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A long way to go: Trift bridge in Switzerland is the longest pedestrian-only suspension bridge in the Alps at 557 feet in length.

长路漫漫：瑞士阿尔卑斯山最长的行人专用吊桥特里夫特桥长557英尺。

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