This area is rich in bedded cupriferous iron sulphide deposits.

He is researching on the pathogenesis and treatment of early-onset diabetes.

His movement was very fast.

Listening to music is really enjoyable.

We decided to explore the cave.

Fumiko wrote him a letter.

His army had a great array of spears and chariots like '輵'.

UNESCO is an international organization that promotes the development of education, science, and culture around the world.