英文關鍵字
arm
background
black
caucasian
cleaner
concrete
dirt
dirty
dof
door
earn
filth
fingerprint
fireman
frame
gloved
gray
hairy
hands
industry
installing
job
male
man
manual
mechanic
mold
motion
move
muddy
palm
physically
prepare
repair
repairman
shallow
soil
solution
stain
stoker
thumb
tilt
tired
two
unhygienic
wash
work
worker