He is an expert in pomology and is researching the cultivation methods of many fruits.

Koma-gaku is one of the traditional music of Japan.

He is enjoying the performance of kudara-gaku.

He is an expert in osteology.

He loves mountains and goes climbing every year.

My major is chemical engineering.

She is conducting research on the world's oldest profession.

Old World monkeys primarily inhabit Africa and Asia.

The World Trade Organization is an important organization that sets the rules for international trade.

The World Health Organization is working to improve public health worldwide.