英文關鍵字
absetzer
adult
bucket
chain
digging
document
excavator
extraction
face
female
folder
fossil
geology
heavy
helmet
industry
loader
machinery
mineral
mining
one
opencut
outdoors
paper
people
person
pit
portable
production
quarry
radio
railroad
reflective
sand
sandpit
spoil
stacker
standing
summer
sunset
train
vest
visibility
walkytalky
woman
work