He is doing special exercises to strengthen his external obturator muscle.

The park gate is closed at night.

He works at the blacksmith's every day to forge his skills.

He is working out his muscles at the gym every day.

This festival is held every year.

This is a special day.

The library was closed early today.

I strained a muscle at the gym yesterday.

The internal obturator muscle is part of the pelvic muscles and is mainly involved in stabilizing the hip joint.

He is my best friend.