a line formed by troops or ships prepared to deliver or receive an attack
例句
用作名词 (n.)
The troops were disposed in battle formation. 部队按照作战队形排列好。
Battle lines were simply impossible to manage in the dense woodlands, and largely pointless against the native tribes! 这些轻步兵用以独立行动,在一般战列步兵无法发挥作用的森林地形对付当地土著。