Instructors answer student questions by e-mail, instant message, phone or fax.
教师用电邮、即时讯息、电话或传真回答学生的问题。
Please do not hesitate to ask the instructors, in person or via email, for assistance.
请踊跃请求指导教授的协助，举例来说，亲自或者以电子邮件询问。
Many are instructors or lecturers.
一些人是讲师。
Many are instructors or lecturers.
一些人是讲师。
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