英文關鍵字
rudder
stern
catamaran
vessel
boat
closeup
sailboat
float
marine
ship
part
device
system
navigation
waves
movement
propeller
harbor
equipment
nautical
steel
dock
transport
metal
sea
transportation
yacht
maritime
blade
shipyard
water
motorboat
underwater
screw
shaft
ocean
technology
hull
detail
iron
motor
steering
drive
boating
watercraft
bottom
shipping