new town       
noun [ C ] uk/ˈnjuː ˌtaʊn/ us/ˈnuː ˌtaʊn/
 (英国由政府规划建设的)新市镇
a town in the UK that did not develop gradually but was planned and created by the government
  Milton Keynes is a new town that was founded in 1967. 米尔顿凯恩斯是1967年兴建的一座新市镇。