英文關鍵字
aerial
algae
apocalyptic
aquatic
artificial
beautiful
chemicals
clay
colored
danger
dangerous
degradation
dunaliella
ecology
ecosystem
environment
environmental
flying
geographic
green
industrial
lake
lakes
landscape
log
minerals
mud
nature
one
picturesque
pink
poisoned
pollution
problem
radioactive
reservoir
salina
shore
technical
top
touristic
toxic
tranquility
travel
unusual
waste
water
wonderful
zone