英文關鍵字
blade
bulldozer
construction
continuous
crawler
doze
dozer
equipment
flatten
forth
forward
ground
heavy
landscape
large
machine
metal
push
sand
site
soil
topsoil
tracks
英文關鍵字
blade
bulldozer
construction
continuous
crawler
doze
dozer
equipment
flatten
forth
forward
ground
heavy
landscape
large
machine
metal
push
sand
site
soil
topsoil
tracks