He has a black belt in karate.

I like to add black pepper to the soup.

I add a little black pepper to the soup.

I like to add black pepper to the soup.

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

He was always envious of others' success, saying that the grass is always greener on the other side.

Kainaka is my best friend.

My father is good at Shogi.

Cultural exchange between China and Korea is very important.

Mr. Nakai is my best friend.