英文關鍵字
air
binary
blade
blades
blow
button
change
circle
control
cooler
cord
danger
decoration
design
dial
digits
dirty
down
dual
electrical
fan
finger
flow
halt
hand
hot
move
off
old
opposite
pattern
person
propeller
pull
push
reach
rotate
round
side
slow
slowing
start
stop
stopped
switch
two
vent
ventilation
white
window