meg·a·lop·o·lis
noun/ˌmeɡəˈlɒpəlɪs/
/ˌmeɡəˈlɑːpəlɪs/
(formal)- a very large city or group of cities where a great number of people live
大都会(区) Word Originmid 19th cent.: from megalo- ‘great’ + Greek polis ‘city’.
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