英文關鍵字
background
ban
band
barrier
blurred
canal
closed
closeup
dugout
forbidden
hazard
heating
industry
iron
laying
mains
manul
metal
new
outdoors
pipe
pipeline
prohibit
prohibited
protect
protection
protective
red
repairing
restrict
restricted
ribbon
safe
safeguard
steel
stripe
striped
tape
tool
tube
warning
white
work