He is an expert in osteology.

Sangaku, a form of popular entertainment in the Nara era, was greatly enjoyed by people.

He collected the sawdust and used it for compost.

Do you remember where I put my study guide?

He is deeply interested in the study of Tang music.

He is good at playing dengaku music.

He is knowledgeable in all fields of learning.

I am a member of the student body.

He understands the basic concepts of thermodynamics.

He is majoring in anthropology at university.