urban jungle
noun [ C usually singular ] disapproving uk/ˌɜː.bən ˈdʒʌŋ.ɡəl/ us/ˌɝː.bən ˈdʒʌŋ.ɡəl/
城市丛林，都市生活（尤指城市生活中令人厌恶的部分）
city life, especially the unpleasant parts of it
Traffic noise, pollution, huge concrete buildings - how can people survive in the urban jungle? 到处都是交通噪声、污染和庞大的混凝土建筑——人们怎能在这样的都市丛林中生存呢？