[mass noun]the action of investigating something or someone; formal or systematic examination or research 调查,审查 he is under investigation for receiving illicit funds. 他因收受非法资金而被审查。 ■[count noun]a formal inquiry or systematic study 调查研究 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。
派生 investigational adjective 语源
late Middle English: from Latin investigatio(n-), from the verb investigare (see investigate)