investigation
noun [ C or U ] uk/ɪnˌves.tɪˈɡeɪ.ʃən/ us/ɪnˌves.təˈɡeɪ.ʃən/
B2 （对犯罪，问题，陈述等的）调查（尤指为了发现真相）
the act or process of examining a crime, problem, statement, etc. carefully, especially to discover the truth
An investigation has been under way for several days into the disappearance of a 13-year-old boy. 对一名13岁男孩失踪展开的调查已进行了好几天。
a full/thorough investigation of the incident 对该事件全面的调查
Currently, the individuals who might have caused the accident are subject to/under investigation. 目前，所有可能引发这起事故的个人都在接受调查。
- More examples
- The bank conducted its own internal investigation into the robbery.
- A lengthy police investigation failed to produce any evidence on which the suspect could be convicted.
- There will be a full investigation to work out what caused the accident.
- Both companies are under investigation for corrupt practices.
- They decided to reopen the investigation when some new evidence emerged.