英文關鍵字
asphalt
soil
wall
flooring
floor
sand
lane
sidewalk
road
walkway
tarmac
infrastructure
snow
geology
rock
roof
cobblestone
wood
track
rain
flat
falling
standing
water
side
flow
away
sides
open
still
stays
thunderstorm
gewitter
lightning
thunder
thunderstruck
strike
storm
wind
rainfall
flood
rainstorm