The girls have been asked to support Ria during a surgery... but the patient is Ria's old teacher, and the hospital's director! Despite their nerves, the girls are determined to give it their best shot!
in one procedure rather 
than break it up into two.
في عمليّة واحدة بدل تقسيمها لعمليتيّن
in una volta sola piuttosto che in due.