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

This area is rich in bedded cupriferous iron sulphide deposits.

He is smart. Moreover, he is also good at sports.

Every day, I make it a point to go around the ground five times.

He sighed deeply.

He couldn't hide his jealousy towards her success.

He directed us to the right path.

He slipped out of the meeting quietly.

Kan curled his hair with his fingers.

He continued studying for the exam without being crushed.