He is an expert in ethology, and his research is highly regarded worldwide.

Cell biology is the study of the structure and function of cells, which are the basic units of life.

He stated his opinion outspokenly as '咢'.

He is majoring in psychology.

Gaku is my best friend.

He learned the old character form of 學 to study ancient documents.

I like listening to music every day.

I like watching movies at the Rakugai Theater.

He stared at the jade, moved by the beauty of the two pieces of jade joined together.

He was playing the ancient instrument, the guan.