英文關鍵字
background
brown
city
clogged
colors
cover
dirty
down
drain
drainage
fender
flood
flow
garbage
gas
grate
grid
gutter
hole
iron
lid
maintenance
manhole
mesh
metal
old
pavement
pour
rain
reflection
road
roadside
rough
rusty
sewage
sewer
sewers
sidewalk
sink
spring
steel
stone
storm
street
summer
sun
urban
water
wayside
wet