“当你年轻的时候是不可能做到那样的，”奥斯沃德说。

When you're young you can't do that, Oswald says.

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“我们不能预测我们今天已经看得见的一些需求，”奥德·沃斯承认说。

"We were unable to anticipate some of the demands we see today," admits Aldworth.

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正如伦敦市交通局(tfl)项目经理尼克·奥德·沃斯解释说这是一项宏大的事业。

It was, as Transport for London (TfL) Project Manager Nick Aldworth explains, a huge undertaking.

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