英文關鍵字
activity
boot
breaking
broke
broken
building
close
concrete
construction
dengerous
dirty
drill
equipment
feet
flat
hammer
hand
hard
heavy
jackhammer
job
land
lens
machine
manual
mechanic
noise
occupation
people
person
pneumatic
power
protective
real
shoe
standing
telephoto
time
tool
uniform
vibrate
work
worker
working
workwear