Drug abuse is having a serious impact as a social problem.

It's important to take the oral contraceptive pill at the same time every day.

He has excellent skills as a simultaneous interpreter.

He simultaneously interpreted the speech at the meeting.

This text is written in translationese.

He is using a bilingual book to learn English.

The external anal sphincter plays a crucial role in helping us control defecation.

The urethral sphincter is a muscle that controls the flow of urine.

The pupillary sphincter adjusts the size of the pupil according to the intensity of light.

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