hackney carriage        
noun [ C ] uk/ˌhæk.ni ˈkær.ɪdʒ/ us/ˌhæk.ni ˈker.ɪdʒ/
 UK formal (also hackney cab)出租汽车 
a taxi
  UK(尤指旧时的)出租马车 
a carriage, usually pulled by a horse, that can be rented with a driver for making short journeys, used especially in the past