柯林斯詞典reconnaissance /r??k?n?s?ns/ 1. N-UNCOUNT Reconnaissance is the activity of obtaining military information about a place by sending soldiers or planes there, or by the use of satellites. 偵察 The helicopter was returning from a reconnaissance mission. 那架直升機(jī)執(zhí)行完一項(xiàng)偵察任務(wù)正在返回。 返回 reconnaissance劍橋詞典the process of getting information about enemy forces or positions by sending out small groups of soldiers or by using aircraft , etc. 偵察 Aerial reconnaissance of the enemy position showed they were ready to attack . 對(duì)敵人陣地進(jìn)行的空中偵察顯示，敵軍已經(jīng)做好了進(jìn)攻的準(zhǔn)備。 返回 reconnaissance