英文關鍵字
airport
animation
arrow
background
beautiful
billboard
book
british
business
choice
class
classroom
compass
concept
course
destination
direction
education
great
information
inscription
international
language
lesson
loop
message
navigation
path
people
pointer
pointing
relaxation
roadsign
seed
signpost
speech
stress
student
study
studying
teach
teacher
travel
typography
vacation
wooden
work