Nowadays they usually begin, "hey, Professor" or "Yo, Professor," something like this.

如今他们通常以，嘿，教授，或者，呦，教授，这类问候作为邮件开头。

youdao

All right. All right. MOLINA: Yo, yo, yo. Hey, guys, come on.

VOA: standard.other

Nowadays they usually begin, "Hey, Professor" or "Yo, Professor," something like this.

如今他们通常以,嘿,教授,或者,呦,教授,这类问候作为邮件开头

耶鲁公开课 - 聆听音乐课程节选