do·cent
noun/ˈdəʊsnt/
/ˈdəʊsnt/
(North American English)- a person whose job is to show tourists around a museum, etc. and talk to them about it
（博物馆等场所的）讲解员，向导 - a teacher at some universities who is not a regular member of the department
（博物馆等场所的）讲解员，向导
Word Originlate 19th cent.: via German from Latin docent- ‘teaching’, from docere ‘teach’.