The doctor provided him with life support treatment.

He is doing special exercises to train his teres major muscle.

After the fire, black smoke was hanging in the sky.

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

In chemistry class, I learned about basic oxides.

He is brushing his lower teeth.

He smiled, showing his lower teeth.

She seemed nervous, biting her lower lip.

She seemed nervous, biting her lower lip.

He was complaining about pain in his armpit.