英文關鍵字
aerial
artificial
blower
chill
cold
copter
culture
display
driver
equipment
evening
filling
fitness
flight
frost
frozen
ice
iceskating
illumination
job
leisure
light
machine
motion
night
nocturnal
outdoor
park
people
pouring
preparation
prepare
process
quadrocopter
recreational
rental
rest
ride
rink
screen
skating
sport
surface
vacation
winter
work