英文關鍵字
action
adult
button
cane
company
concept
conditions
contains
contemporary
corridor
employees
equipment
exploitation
factory
groups
hall
human
industry
insulation
interior
machine
machinery
machines
manpower
manual
manufacture
material
mechanical
medium
motion
occupation
operator
part
people
person
place
power
production
push
real
rights
safety
senior
shot
teamwork
technology
the
time
unrecognizable
women
work
worker
workers
working