He fell asleep using my arm as a pillow.

He got a tattoo on his forearm.

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

The Calopteryx cornelia is a species endemic to Japan, and it has beautiful wings.

His advice was like pushing against a curtain to her, having no effect.

He is doing special exercises to strengthen his coracobrachialis muscle.

The multi-armed bandit problem is a part of probability theory, providing an algorithm for making optimal choices.

We should always remember the power of Kannon in difficult times.

He is doing special exercises to strengthen his flexor digitorum profundus.

He goes to the gym every day to train his brachioradialis muscle.