1.to scout2.to spy3.to detect
侦探偵探HSK 7–9前 2000 名最常用的 2,000 个词之一 1.detective2.to do detective work
1.to detect2.to investigate
1.surveillance aircraft2.spy plane
1.to track down2.to investigate and arrest
1.to eavesdrop2.to tap (telephone conversations)3.to intercept and investigate
to interrogate during investigation
to investigate (a crime) and prosecute
economic crime investigation
1.to file for investigation2.to prosecute (a case)
美国国家侦察局美國國家偵察局 National Reconnaissance Office (of the United States)
special investigation team (Tw)