He was sweating under his armpits, perhaps because he was nervous.

The harmonic series continues indefinitely, but its sum is not finite.

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

He was standing by the side of the incident, doing nothing.

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.

He is good at distinguishing music genres.