Of the original scheme hardly a wrack remains.
原来的计划几乎一点残迹也未留下。
The original scheme was unveiled in late-2008 and tested in eight major US airports.
这项服务最初在2008年末推出,并在8个主要的美国机场进行测试。
Extra-plan Time reflects the difference between the original scheme and the current scheme.
Extra - plan Time反映了原始方案与当前方案之间的差异。
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