英文關鍵字
man
male
student
meeting
book
teacher
girl
communication
college
class
lecture
speech
training
listeners
spokesperson
teaching
school
room
lecturer
knowledge
studying
indoors
learning
information
seminar
instructor
course
session
explain
tutorial
listen
professor
education
professional
boys
lesson
talk
discussion
institute
workshop
people
academy
presentation
18s
university
group
belarusian
belarusians