sorting offices是sorting office的复数

sorting offices

美 [ˈsɔrtɪŋ ˌɔfɪs]

英 [ˈsɔː(r)tɪŋ ˌɒfɪs]

英英

n.	1. a building where post office workers put mail into different boxes according to the town, area, or street that it is going to