This polarization of enclaves of mega-wealth surrounded by sectors of poverty and the socioeconomic inequalities they have engendered is really at the center of today's urban crisis.
贫民窟的爆炸性增长。 超级富有的飞地周围 则是各种贫困区， 这种两极分化和由此造成的社会经济上的不平等 正是今天的城市危机的重要内容。