1、The army sent a small team on a reconnoissance mission to gather intelligence about enemy positions.
军队派遣了一个小队执行侦查任务，收集敌人位置的情报。
2、The pilot conducted a thorough reconnoissance of the area before the bombing mission.
飞行员在轰炸任务前对该地区进行了彻底的勘测。