In an urbanizing world, as we face the global economic crisis and the expanding impacts of climate change, we have to work particularly hard to ensure that the legions of urban poor are not left behind.
在这个日益城市化的世界里，面对全球经济危机和气候变化带来的越来越广泛的影响，我们必须特别努力确保大量的城市贫民不被遗忘。