He is doing squats to strengthen his rectus femoris muscle.

He is doing special exercises to strengthen his extensor hallucis longus.

He started a special exercise to strengthen his flexor hallucis longus.

He has a self-centered personality and doesn't listen to others' opinions at all.

The levator costae longus is a part of our back muscles.

She does pubococcygeus muscle exercises every day.

This movie is rated R-18, so people under the age of 18 cannot watch it.

He mistook me for my sister.

His new novel has a lot of erotic descriptions.

His misdeeds should receive divine punishment.