(used of military forces) designed for military operations abroad
expeditionary详细解释
ex.pe.di.tion.ar.y adj.（形容词）Relating to or constituting an expedition.考察的：同考察有关的或组织一次考察的Sent on or designed for military operations abroad:远征的：为在国外的军事行动而谋划或派遣的：例句：the French expeditionary force in Indochina.在印度支那的法国远征军
