He is the chief technical officer of our company.

He is active as the chief information officer of our company.

He drew a circle using geometric construction.

We should always remember the power of Kannon in difficult times.

His long talk is just like 'a hundred days of sermonizing without a fart.'

His proposal was already perfect, but her opinion was an unnecessary addition.

He does his work perfectly, dotting the i's and crossing the t's.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.