兼任的

例句：

1. 1. She is both a teacher and a doctor, concurrently serving as a mentor to the students.
   她既是老师又是医生，同时担任着对学生的导师。
2. 2. The company has appointed two people to serve as its new CEO, concurrently sharing their expertise with theteam.
   该公司已任命两人担任新任CEO，同时与团队分享他们的专业知识。
3. 3. He is concurrently serving as both a professor and a researcher, dedicating his time to both academic pursuits.
   他同时担任教授和研究员的角色，致力于学术研究。