[with obj.]make a military observation of (a region) 侦察(地区) they reconnoitred the beach some weeks before the landing. 登陆前的几周他们侦察了海滩。 [no obj.]the raiders were reconnoitring for further attacks. 袭击者们在为进一步攻击进行侦察。
noun
(informal)an act of reconnoitring (非正式)侦察 a nocturnal reconnoitre of the camp. 对敌营的夜间侦察。
语源
early 18th cent.: from obsolete French reconnoître, from Latin recognoscere 'know again' (see recognize)