a large, open part of a public building, especially an airport or a train station (尤指机场或火车站的)大厅,广场 the station concourse 车站大厅 There are lots of shops leading off the main concourse. 有许多商店通向主广场。
Word Originlate Middle English (originally referring to a crowd): from Old French concours, from Latin concursus, from concurs- ‘run together, met’, from the verb concurrere ‘run together, assemble in crowds’, from con- ‘together with’ + currere ‘to run’. The current sense (originally US) dates from the mid 19th cent.