(每日一词) supervisor

Supervisor /ˈsuːpərvaɪzər/ n. 监督员; 指导者

Meaning: A supervisor is a person who supervises activities or people, especially workers or students.

前缀: super- 在..上面

词根: vis- 看

后缀: -or 名词后缀

e.g. I need to speak to my supervisor about this issue. 我需要就这个问题跟我的主管谈谈。