The vesical sphincter plays a crucial role in controlling the excretion of urine.

He worked hard to accomplish his goals.

This factory has significantly reduced its carbon dioxide emissions.

The factory is emitting a large amount of carbon dioxide.

His role is the team leader.

Health is very important.

His opinion is very important.

He went to the hospital because of a bladder problem.

He is good at controlling that game.

He is completely controlling the robot.