英文關鍵字
afloat
aged
buoy
buoyant
damage
danger
defence
defense
dirty
dowdy
environment
equipment
float
foil
garbage
guard
help
inflatable
injury
junk
lake
life
lifebuoy
old
pollution
preserver
protection
ragged
red
rescue
ring
ripple
risk
river
rubbish
safe
safety
save
sea
security
shabby
sports
swim
water
wave
wavy
wet
wheel