sorting office
noun [ C ] uk/ˈsɔː.tɪŋ ˌɒf.ɪs/ us/ˈsɔːr.t̬ɪŋ ˌɑ.fɪs/
邮件分拣处
a building where letters, parcels, etc. are taken after they have been posted and where they are then put into groups according to their addresses before being delivered