英文關鍵字
airscrew
apparatus
balcony
balustrade
blade
blue
brick
chopper
circling
corner
dwelling
edge
edifice
fly
glass
garland
helicopter
house
hover
lamp
machine
motion
nobody
noone
nopeople
outdoor
outside
propeller
rotates
rotorcraft
side
sky
soar
spin
tail
tile
transport
vane
wall
windmill
window