英文關鍵字
boat
canal
cargo
carrier
channel
commerce
commercial
dark
darkness
dawn
dock
dramatic
dusk
early
economy
evening
freight
gas
goods
harbor
heavy
import
industrial
industry
late
logistics
maritime
nautical
navigation
port
river
rotterdam
sail
sea
ship
shipment
shipping
sky
tanker
trade
traffic
transport
transportation
twilight
vessel
view
water
waterway
world