英文關鍵字
bank
blue
boat
broken
close
clouds
coast
coastline
cold
covered
danger
day
drift
ecology
environment
fast
float
floating
floe
floes
flow
forest
frost
frozen
guard
hovercraft
ice
landscape
melt
move
moving
natural
nature
outdoors
pieces
rapidly
reflection
rescue
river
rural
scene
season
sky
slow
snow
speed
spring
transport
transportation
view
water
wave
waves
white
wild
wood