He is actively participating in social movements.

He is passionately engaged in extracurricular activities.

Every weekend, I do volunteer work at a local shelter.

He likes to take a walk in the park at dusk.

He engaged in an extravehicular activity from the spaceship.

He is undergoing training for extravehicular activity.

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

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.