/ɪnˈvestɪgeɪt ||; ɪnˈvɛstəˌget/verb [I,T] to try to find out all the facts about sth 调查；研究:
A murder was reported and the police were sent to investigate. 凶杀案发生后，警察被派去调查。A group of experts are investigating the cause of the crash. 专家小组正在调查坠机原因。 ➔investigator noun [C]