英文關鍵字
backpack
bottle
caucasian
clean
clear
drink
drop
ecology
enjoy
fall
fill
flow
flowing
fountain
fresh
full
hand
health
healthy
holding
man
mountain
natural
nature
outdoors
person
plastic
potable
pour
pouring
public
pure
source
spain
spring
stone
stream
summer
sweetwater
thirst
tourism
tourist
transparent
travel
traveler
water
waterfall
woman