expedition
noun uk/ˌek.spəˈdɪʃ.ən/ us/ˌek.spəˈdɪʃ.ən/
(JOURNEY)
B1 [ C ]远征;探险，考察
an organized journey for a particular purpose
We're going on a shopping expedition on Saturday. 周六我们要去购物。
Scott died while he was on an expedition to the Antarctic in 1912. 斯科特1912年死于南极探险途中。
[ C ]踏上征途的一批人（或车、动物等）;考察队;探险队
the people, vehicles, animals, etc. taking part in an expedition
The British expedition to Mount Everest is leaving next month. 英国珠穆朗玛峰探险队将于下月启程。
(SPEED)
[ U ] formal迅速;快速;动作敏捷
speed in doing something
We will deal with your order with the greatest possible expedition. 我们将尽快处理您的订单。