英文關鍵字
antenna
atwork
bestjob
boat
captain
caucasian
chief
closeup
colreg
connection
equipment
european
lookout
male
man
marine
maritime
master
mate
nautical
navigation
occipied
ocean
officer
opensea
professional
publications
regulations
report
safety
safetyatsea
sea
seaman
ship
shore
speaker
transmission
transmit
vessel
watch
weather
workatsea
working