请问哪位能告诉我"教务总监"和"讲师"这个职位用英文怎么说?谢谢!

教务 [简明汉英词典]

educational administration

总监 [简明汉英词典]

majordomo

讲师 [简明汉英词典]

docent

instructor

lector

lectuer

lecturer

prelector

reader