英文關鍵字
barge
bay
beach
blue
boat
bulk
coastline
construction
dredge
dredger
earth
engineer
equipment
gravel
harbor
industrial
industry
land
machine
mover
nautical
pipe
pump
reclamation
sand
sea
send
ship
silt
sky
spray
stream
suction
technology
through
trail
transportation
transporter
tube
vessel
water
work