英文關鍵字
caucasian
child
children
close
conservation
electricity
energy
female
girl
home
indoors
light
lockdown
motion
off
old
one
people
person
power
slow
switch
turning
year
英文關鍵字
caucasian
child
children
close
conservation
electricity
energy
female
girl
home
indoors
light
lockdown
motion
off
old
one
people
person
power
slow
switch
turning
year