Ichii is my best friend.

He is solely devoted to his work.

I kept talking with him for over an hour.

He never misses his multifidus muscle training every day.

He explained the structure of the arytenoid cartilage in the throat in detail.

The arytenoid muscle is part of the laryngeal muscles, regulating the opening and closing of the vocal cords.

He tried to solve the problem all day long.

One side of the park was covered with beautiful flowers.

Let's finish this job for now and then move on to the next.

He learned the basics of Japanese.