18s
40s
belarusian
belarusians
book
boys
class
college
discussion
education
explain
friendly
girl
group
helping
indoors
information
knowledge
learning
lecture
lecturer
lesson
listeners
male
man
mask
meeting
people
presentation
professional
professor
protective
room
school
seminar
session
speech
standing
student
studying
talk
teacher
teaching
training
tutorial
young