英文關鍵字
attraction
banana
beam
bedding
bywash
cave
cavity
cockpit
devils
doline
dust
fall
falls
feature
flood
freak
funnel
geographical
geography
glow
ground
gully
hole
karst
landmark
lanka
light
lighting
miracle
mountain
natural
nature
penetrates
phenomenon
ponor
pothole
powerful
ray
river
scour
sight
sink
sinkhole
sluggy
sri
stream
subterrarian
sun
sunlight
sunshine
type
underground
washaway
washboard
water
waterfall
wonder