He is my best friend.

His goal was truly a miracle play.

The membrane of this cell is very thin.

This is a special day.

He strained his muscles to lift the heavy luggage.

He cooked specially for me.

The membrane of this cell is very thin.

He started exercises to strengthen his gluteus medius muscle.

He is doing special exercises to strengthen his adductors.

He trains his gluteus maximus at the gym every day.