He was sent to Eritrea to reconnoitre the enemy position.他曾被派往厄立特里亚侦察敌方阵地。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。A landing party was sent ahead to reconnoitre the area.派出一支登陆先遣队前往该地区侦察。They sent a scout to reconnoitre behind the enemy outposts.他们派一名侦察员去敌人前哨的后方进行侦察。