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

This new product is only available for pre-order sale, and is not sold in stores.

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 internal anal sphincter is a muscle that helps us control defecation.

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.