That event greatly changed his life.

This letter became the clue to the incident.

I read a letter from her.

I got a letter from her.

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.

The Jinan incident of 1928 was an important event in Chinese history.

I read the Letter to the Ephesians and gained a deep understanding of Christian teachings.