expedition

1.远征，探险，考察
to plan an expedition to the North Pole 计划去北极探险
2.探险队，远程队，考察队
Three members of the North Pole expedition were killed.
三名北极探险队员遇难。
3.（短途的）旅行，外出
a shopping expedition 外出购物

expeditious 迅速而有效的；迅速完成的=efficient

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