He calculates the trajectory when he throws a stone.

He is dedicated to the art of medicine.

I saw a young child playing in the park.

Mr. Shindo is my best friend.

Mr. Shindo is my best friend.

Mr. Shindo is my best friend.

I'm learning how to move the copper general in chu shogi.

He believed in the ancient geocentrism.

We were all extremely astonished by his sudden resignation announcement.

I was very astonished by his surprising announcement.