We will do our best to solve this problem.

My personal thought is that everyone should be treated equally.

He values his private life.

He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

In psychology, it is important to understand the mechanism behind human behavior.

We adopted the AA system to start a new project.

Monarchy still exists in some countries.