英文關鍵字
analysis
answer
ask
asking
blackboard
board
brainstorming
chalk
chalkboard
choice
confusion
consultation
doubt
drawing
drawn
education
faq
find
green
greenboard
help
how
investigation
knowledge
learning
lettering
mark
problem
query
question
research
school
search
solve
solving
strategy
study
support
text
think
thinking
uncertainty
unknown
what
when
where
who
why
word
write