1 official (in an organization or government)

2 administrator

1 government

2 official (approved or issued by an authority)

1 surname Jiao

1 classroom

2 classifier: 间 jiān

1 professor

2 to instruct

3 to lecture on

4 classifier: 个 gè

5 classifier: 位 wèi

1 promotion in official post and salary raise (idiom)

1 promotion to the nobility (idiom)

1 promotion in official post and salary raise (idiom)

1 to be promoted and gain wealth (idiom)

1 (idiom) to teach in line with the student's ability