He clearly understands the distinction between public and private.

His joke filled the room with a roar of laughter.

He burst out laughing when he heard the joke.

He is devoted to agricultural work every day.

This cheesecake is very thick.

I like the thickness of this cheesecake.

They concluded a peace agreement after a long war.

My ear hurts because it's clogged with earwax.

In spring, there can be yellow sand flying around.

Kotaro is my best friend.