英文關鍵字
boat
clouds
cruise
deck
fence
horizon
lake
landscape
life
lifebuoy
liner
mesh
motor
movement
outside
passenger
passengers
preserver
railings
reflection
rescue
ripples
river
russia
sail
sea
security
ship
sky
summer
sunny
tourist
tranquility
trip
vacation
vehicle
vessel
volga
walk
walking
water
waves
woman