I bought a new swim cap.

A jellyfish is one of the beautiful creatures of the sea.

The cell membrane plays an important role in maintaining the structure of the cell.

The activity of brain cells directly affects our thoughts and actions.

He felt labored breathing and immediately contacted a doctor.

He was taken to the hospital because of dyspnea.

She suffers every month because of dysmenorrhea.

He is suffering from aphasia as a sequelae of stroke.

Whether he liked it or not, he had to continue the job.

He can't learn from his mistakes, just like the proverb 'not returning to the water jar after drinking'.