That event greatly changed his life.

The superintendent is investigating the details of the case.

This report is very detailed.

Please tell me the details.

We started an investigation into the incident.

The police are investigating the incident.

This is the most difficult case I have ever faced.

He got involved in a love affair.

The Tiananmen Square incident is an important event in Chinese history.

The Marco Polo Bridge Incident was the trigger for the Sino-Japanese War.