investigation
/ɪnˌvestɪˈgeɪʃən/noun
mass noun
1- 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。
1.1
- 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。
派生词
investigational
adjective词源
late Middle English: from Latin investigatio（n-）， from the verb investigare （see INVESTIGATE）.