head of the department of medical administration

例句：

1. 1. The head of the companyis responsible for making important decisions.
   公司的负责人负责做出重要的决策。
2. 2. The teacher'shead was covered with a scarf.
   老师戴着一条围巾。
3. 3. She held her head highand walked confidently into the room.
   她昂首阔步地走进房间。