英文關鍵字
answer
asking
background
black
communicate
communicating
communication
concept
confused
confusing
confusion
guess
hand
hands
handwriting
handwritten
help
helpless
holding
icon
idea
information
mark
marker
message
note
paper
pen
problem
problems
punctuation
puzzle
question
questionmark
riddle
searching
sign
solution
solving
symbol
text
think
thinking
unknown
white
why
write
writing
written