求翻译：4． Lesson72课是综合练习课，它包括了围绕着Seeing the doctor的功能话题 的听力练习、句型操练、对话复习及写作示范，以巩固学生对本单元的核心话题Seeing the doctor的记忆与理解。是什么意思？

4. Lesson72 is a comprehensive practice course, it includes the function topic in around Seeing the doctor listening practice, Drills Practice, dialogue review and writing of demonstration, to consolidate the student on the unit's memory and understanding of the core topics for Seeing the doctor.