This sea area is rich in diversity of benthic organisms.

He spends time on hairdressing every morning.

His room is always tidy.

He is skilled in the alchemy of magic.

He mastered the technique of refining metals.

He issued a statement about the problem.

The fundamental evil of man is deeply rooted.

The burial practice in Japan is an important culture that symbolizes family ties.

My father works in pottery manufacture.

He is learning the technique of manufacturing pottery.