Number Ten
noun [ S, + sing/pl verb ] uk/ˌnʌm.bə ˈten/ us/ˌnʌm.bɚ ˈten/ (written abbreviation No. 10)
唐宁街十号（指英国首相官邸）;为首相工作（或代表首相）的人;英国政府
the official home of the British prime minister in Downing Street, London, or the people who work for or represent the prime minister
Number Ten announced tonight that the election will be on 6 April . 唐宁街十号今晚宣布，选举将于4月6号举行。