英文關鍵字
buoy
marine
navigation
ocean
safety
marker
nautical
water
mark
sea
coast
maritime
navigational
warning
float
travel
navigate
seascape
sign
danger
floating
harbor
signal
symbol
transportation
security
yellow
boat
protection
equipment
port
shipping
safe
waterway
caution
vessel
fairway
boating
beacon
bouy
seamark