野原

(1)a region in which active military operations are in progress; "the army was in the field awaiting action"; "he served in the Vietnam theater for three years"

(2)活動中の軍事作戦が進行中の地域

(1)the army was in the field awaiting action

(2)軍隊は、行動待機の状態でその平野にいた

(3)he served in the Vietnam theater for three years

(4)彼は3年間ベトナムの戦域で軍隊に勤めた