到2050年，全球约75%的人口将居住在城市，因此城市需要更加现代化才能应对未来的问题。
About 75% of the world's population will live in cities by 2050, so cities will need to be more modern to deal with the coming problems.
这个机场看起来和欧洲其他主要的现代化机场一模一样，除了有一个大问题。
The airport looks exactly like every other major modern airport in Europe, except for one big problem.
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