幹,
唬爛王 skap0091,
英文太爛又不會好好做功課就亂掉書袋.

"The term comes from the concept of physical walls being barriers to slow the spread of fire until emergency services can extinguish it. By comparison, network security firewalls are for web traffic management — typically intended to slow the spread of web threats."

https://www.kaspersky.com/resource-...itions/firewall