1.

1. 侦察：reconnoiter 侦察 | reconnoitre 侦察 | reconquer 再征服

2. 侦察; 勘察 (动)：reconnoiter 侦察; 勘查 (动) | reconnoitre 侦察; 勘察 (动) | reconquer 再征服; 再攻占 (动)

1. 侦察;勘测
    To reconnoitre an area means to obtain information about its geographical features or about the size and position of an army there.

reconnoitre在线翻译

    e.g. He was sent to Eritrea to reconnoitre the enemy position...
           他被派往厄立特里亚侦察敌军位置。
    e.g. I left a sergeant in command and rode forward to reconnoitre.
           我留下一名中士指挥，自己策马前去侦察敌情。

1. explore, often with the goal of finding something or somebody

    Synonym: scoutreconnoiter