英文關鍵字
asphalt
background
barrier
big
broken
brown
building
cave
city
communications
construction
designation
dug
fence
fenced
gravel
gray
ground
hard
hole
hummock
industrial
industry
infrastructure
job
large
laying
order
outdoors
pipes
pit
protective
purpose
red
remot
repair
ride
roadworks
rubble
soil
stones
street
tape
urban
warning
water
white
work