He is a world-renowned osteologist.

He is an expert in osteology.

He admitted that it is difficult to execute the plan, saying 'it is easier said than done.'

Well then, I'm off.

The balance of intestinal bacteria greatly affects health.

The mesentery plays a role in supporting the intestines.

We should always remember the power of Kannon in difficult times.

Special judicial police officers are working hard every day to protect the law in Japan.

He trains his deltoid muscles at the gym every day.

He is doing special exercises to strengthen his cervical muscles.