n.调查
It's only the initiative of the investigation. 这仅仅是调查的开始。
He has promised a thorough investigation into the affair. 他已答应彻查此事。
We were greatly aided in our investigation by the cooperation of the police. 我们在调查的过程中得到警方的大力协助。
The investigation was carried out under the direction of a senior police officer. 调查是在一位高级警官的指导下进行的。
