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

He is doing special exercises to strengthen the incisivus labii superioris muscle.

She is wearing braces.

She started a special exercise to strengthen the incisivus labii inferioris muscle.

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.