英文關鍵字
adventure
aeronautics
air
aircraft
airline
airliner
airplane
airway
altitude
atmosphere
azure
city
climate
commercial
earth
flight
fly
global
heaven
high
jet
jetplane
journey
landscape
leave
meteorology
motion
nobody
noone
nopeople
northern
plane
sky
space
stratosphere
tourism
tourist
town
travel
trip
voyage
weather
wing