英文關鍵字
around
away
bar
build
cafe
cleaning
column
construction
dust
equipment
exhibition
few
hangar
human
indoor
inside
labourer
large
light
machine
male
man
material
metal
motion
movement
moves
people
pile
pillar
ride
service
several
space
stand
structure
transport
trash
turns
uniform
walk
wall
warehouse
work
workplace