英文關鍵字
are
australia
beach
blue
buggy
danger
flags
foam
life
lifeguard
lifeguards
lifesaving
must
ocean
patrol
patrolling
rescue
roll
safety
sand
savers
sea
sky
sun
surf
swim
swimmers
vehicle
watching
water
waves
when
while
英文關鍵字
are
australia
beach
blue
buggy
danger
flags
foam
life
lifeguard
lifeguards
lifesaving
must
ocean
patrol
patrolling
rescue
roll
safety
sand
savers
sea
sky
sun
surf
swim
swimmers
vehicle
watching
water
waves
when
while