accent
adult
ask
background
barrier
business
businessman
call
chinese
communication
concept
confused
confusion
connection
customer
dialect
dialog
different
difficulty
employee
english
expression
foreign
glasses
grammer
guy
help desk
idea
language
learn
listen
male
man
mind
misunderstand
people
person
phonetics
polyglot
problem
pronunciation
question
service
speak
student
study
teacher
translate
translator
young