英文關鍵字
help
question
marks
customer
support
service
info
i
letter
faq
information
frequently
asked
questions
text
education
asking
symbol
blackboard
sign
illustration
helpdesk
communicate
ask
informative
chalkboard
black
chalk
board
table
school
class
learning
lettering
drawn
studying
answer
query
instruction
advice
guidance
internet
communication
knowledge
idea
know
learn
contact
center
hotline