This area is rich in bedded cupriferous iron sulphide deposits.

Please teach me how to calculate the area of this circular sector.

He is doing a special exercise to strengthen his extensor carpi radialis brevis.

The extensor carpi radialis longus is a part of the arm muscles and helps in the movement of the wrist.

He said it was hard to bring up Mitsuru.

Sumi makes sure to stay hydrated.