The tauon plays an important role in particle physics.

The study of sound waves is an important part of acoustics.

Using earplugs can block out the surrounding noise.

He couldn't let go of his grudge against her.

He received a reward for his brave action.

Mr. Sonoda is my best friend.

His grades have significantly improved compared to before.

On New Year's, the whole family eats mochi together.

He was running while holding a bag.

A mole is digging a hole in the garden.