英文關鍵字
info
information
faq
help
letter
question
marks
frequently
asked
questions
green
text
word
education
symbol
blackboard
sign
illustration
support
inform
helpdesk
service
communicate
ask
informative
chalkboard
chalk
board
table
school
class
learning
lettering
study
draw
hand
drawing
studying
answer
query
drawn
why
interrogation
asking
instruction
advice
manual
guidance
coaching
science