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n (1)間諜(person employed esp by a government，to obtain secret information or intelligence about another country)[C]：a foreign/military～外國/軍事間諜;be suspected of being a～被懷疑是間諜;be arrested as a～作為間諜被捕;a～plane/ring/network;間諜飛機/集團/網(wǎng);～trial 對間諜嫌疑犯進行的審訊;〖同〗operative，informer;

(2)偵(密)探，竊取情報者(person who secretly seeks information concerning persons，projects，or the like，esp for profit)[C]：industrial/police～ies 工業(yè)間諜/警探;

→′spy-glass n 小型望遠鏡;′spy-hole n 觀察孔;

v (1)作間諜;窺(監(jiān))視，偵察(探)(work as a spy;watch secretly)[I，I+prep (on/into)]：S～ing is dangerous. 從事間諜活動是危險的?！玣or the enemy 為敵人充當間諜;be expelled for～ing 因從事間諜活動而被驅逐出境;Don't～on me/your neighbour. 別在暗中監(jiān)視我/你的鄰居?！玱n the enemy submarines/army監(jiān)視敵人的潛艇/軍隊;～into other people's affairs 窺探他人的事;〖同〗shadow，scout;

(2)看見，注意到，發(fā)現(xiàn)(catch sight of;see;notice)[T+n，C+n+-ing][通常不用prog](fml，joc)：～a small bird in the tree/a human figure on the hill-side 發(fā)現(xiàn)樹上有一只小鳥/山坡上有個人影;～sb trying to hide behind a tree/coming the path 發(fā)現(xiàn)某人試圖藏在樹后/從小路上走來;〖同〗see，observe，spot，sight，detect;

spy out the land 摸清情況：He sent forward a few scouts to～out the land. 他派出了幾個偵察員去了解情況。

spy out (v adv)偵察出，暗中探明(vt)：The detective～ied out the suspected thief. 偵探查明了那個盜竊嫌疑人。