英文關鍵字
flag
safe
lifeguard
beachrescuer
rescue
rescuer
sky
beach
seaside
shore
sea
ocean
bamboo
pole
cloth
winding
sign
swimming
swimmer
bathing
blur
candid
rapid
dark
stormy
storm
signal
landmark
coast
safety
summer
yellow
wind
security
red
tourism
vacation
coastline
surf
holiday
travel
warning
flagpole