名詞 reconnaissance:

1. the act of reconnoitring (especially to gain information about an enemy or potential enemy)
   同義詞：reconnaissance mission

1. A reconnaissance or patrol unit that moves ahead of an advance party or guard, or that follows a rear guard.
   尖兵在一群前進(jìn)的士兵或衛(wèi)兵前面移動(dòng)的偵察或巡邏的單位，也指尾隨一支殿后的衛(wèi)隊(duì)
2. Photographic aerial reconnaissance especially of military targets.
   空中照相偵察空中照相偵察，尤指軍事目的的
3. The squadron flew a reconnaissance mission.
   該空軍中隊(duì)執(zhí)行一偵察任務(wù)。

reconnaissance 也作 re.con.nois.sance

n.（名詞）
An inspection or exploration of an area, especially one made to gather military information.
偵察；勘察：對(duì)某塊地區(qū)進(jìn)行的視察或探察，尤指為收集軍事信息而進(jìn)行的這種活動(dòng)

來源：
French
法語
from Old French reconoissance [recognition]
源自 古法語 reconoissance [認(rèn)識(shí)]
from reconoistre reconoiss- [to recognize] * see recognize
源自 reconoistre reconoiss- [承認(rèn)，公認(rèn)] *參見 recognize