reconnaissance mission

• 为收集有关敌方力量、地形或其他区域特征的信息而进行的军事或战略行动，通常由小分队或专门人员执行。

A military or strategic operation conducted to gather information about enemy forces, terrain, or other features of an area, typically carried out by small units or specialized personnel.

1. Military scouting operationB2formal

   A mission conducted to gather information about enemy forces, terrain, or other strategic features.

   侦察任务

   • The unit was sent on a reconnaissance mission behind enemy lines.
   • Drones are often used for reconnaissance missions to avoid risking soldiers.
   • The reconnaissance mission revealed the location of the enemy's supply depot.

2. Preliminary surveyC1formal

   An exploratory survey or investigation to collect data before a larger operation.

   侦察任务

   • The scientists conducted a reconnaissance mission to map the uncharted island.
   • A reconnaissance mission of the area was necessary before the archaeological dig.
   • The rover's first task was a reconnaissance mission of the Martian surface.