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

He is doing special exercises to strengthen his flexor hallucis brevis.

He had difficulty walking due to an injury to his extensor hallucis brevis.

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

He is involved in the development of androids.

Cao joined the military as a new cadet.

His room is always miscellaneous, with things scattered around.

I'll leave the ending of this story to your imagination.

Recently, his popularity has been increasing.

Alkaline earth metals are one of the main components of the earth's crust.