英文關鍵字
bath
beach
beaches
calm
caution
cautious
children
clear
close
cross
danger
days
display
exercise
eye
flag
flags
flagstaff
green
hazards
indicating
lifeguard
lifeguards
lifestyle
meaning
ocean
oceans
pole
red
safe
safeguard
safety
scenics
sea
seashore
seaside
shore
sign
signal
still
swim
swimmers
symbol
threat
unpredictable
warning
warnings
water
waving
wind