英文關鍵字
bay
beautiful
blue
boat
coast
coastguard
day
defending
emergency
float
guard
harbor
landscape
law
marine
motor
motorboat
nautical
navy
ocean
patrol
pier
police
protection
recreation
rescue
river
safety
sailboat
sailing
sea
seascape
security
ship
speed
summer
tourism
transport
transportation
travel
tropical
vehicle
vessel
water
yacht