網址: https://static.vecteezy.com/system/resources/previews/002/261/253/original/exit-emergency-green-sign-isolate-on-white-background-illustration-eps-10-free-vector.jpg
網址2: https://www.vecteezy.com/vector-art/2261253-exit-emergency-green-sign-isolate-on-white-background-vector-illustration-eps-10
