20世纪以来，城市化成为世界性的潮流。
Since the 20th century, urbanization has become a global trend.
其三，城市又是一个具有世界性概念的符号。
Third, city is also a symbol which carries the worldwide concept.
城市垃圾的处理是一个世界性的难题，我们也不例外。
纽约是一个高度世界性的城市。
中国的主要城市北京和上海，已成为世界性都市，她说。
Major Chinese cities, such as Beijing and Shanghai, have become cosmopolitan cities, she said.
美国的东海岸有很多世界性的大城市。
America "s East Coast is home to some the most cosmopolitan cities in the world."
美国的东海岸有很多世界性的大城市。
America "s East Coast is home to some the most cosmopolitan cities in the world."
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