英文關鍵字
amsterdam
back
beautiful
boat
canal
cargo
engine
exhaust
exhaustion
ferry
from
green
harbor
harbour
industrial
industry
metal
motor
movement
moving
ocean
oil
pipe
pipes
pollution
reflection
riding
river
scene
sea
seen
ship
silo
silos
smoke
sunny
transport
transportation
tug
vessel
water
whirlpool
white