My father is the president of the local chamber of commerce and industry.

We shared the progress of the project in a video conference.

The agenda of the Security Council is an important issue related to national security and defense.

His advice was like pushing against a curtain to her, having no effect.

The National Security Council was convened to make important policy decisions.

He chose a stable job, saying 'a bird in the hand is worth two in the bush.'

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.