機器
浜辺
action
bay
blue
bulldozer
chain
coast
contractor
diesel
dig
dirt
dragging
dredging
driving
dump
equipment
erosion
excavation
excavator
heavy
hydraulic
industry
land
leveling
machinery
main
man
metal
mover
ocean
operating
pipes
project
reclamation
replenishment
rig
rusty
sand
sky
technology
transport
transportation
truck
water
wheel
worker
working
yellow