unitary/ˈjuː.nɪ.ter.i/形容词(英国地方政府)集权制的,单一自治体的Wales will be divided into 21 unitary authorities instead of eight counties and 37 districts.威尔士将被划分为21个单一自治体,以取代8郡、37个地区的行政区划。想跟读,去练习