investigate /inˈvestiɡeit/ vt. & vi. 调查，侦察：The government of the United States began at once to investigate the case. 美国政府立即开始调查这个案件。The detective was sent to investigate the crime. 侦探被派去调查犯罪事实。He would go and investigate. 他将去调查。
investigation n. [u]调查，审查；[c]调查研究：make an investigation on/of/into sth.对某事进行调查研究The letter calls for an investigation of the facts. 来信要求对这些事实进行调查。He is under investigation for receiving illicit funds.他因收受非法资金而被审查。An investigation has been launched into the potential impact of the oil spill.已经着手调查研究油料溢漏可能造成的影响。
investigator /inˈvestiɡeitə/ n. [c] 调查者，审查者：The team consisted of six investigators and two secretaries.这个团队由六个调查人员和两个秘书组成。He was a special investigator for the FBI（the Federal Bureau of Investigation美国联邦调查局）.他是联邦调查局的特别调查员。
