He is an expert in nuclear physics.

My favorite fighting game is Street Fighter.

He solved the problem by hook or by crook.

He was concealing that information.

He started a special exercise to train his serratus posterior inferior muscle.

By strengthening the posterior scalene muscle, you can reduce neck and shoulder pain.

He is doing a special exercise to train his occipitofrontalis muscle.

Each class conducts lessons in their respective classrooms.

His plan has a flaw.

He looked up at the tower.