機器
airport
announce
attendant
belt
blue
calculate
centre
climate
cloud
communication
demonstrate
direction
emergency
fast
flight
fly
host
jacket
land
law
life
light
list
mark
park
passenger
pilot
plane
pressure
radar
radio
risk
rules
run
safety
seat
serve
service
sign
signal
sky
speaker
speed
station
steel
storm
temperature
travel
uniform
wait
way
wheels
white
wind
wings