英文關鍵字
activity
dirt
drop
dump
dumper
dumping
earth
equipment
ground
heavy
industry
land
outdoor
pour
pouring
soil
tilt
transport
transportation
truck
unload
unloading
vehicle
英文關鍵字
activity
dirt
drop
dump
dumper
dumping
earth
equipment
ground
heavy
industry
land
outdoor
pour
pouring
soil
tilt
transport
transportation
truck
unload
unloading
vehicle