防火墙

fáng huǒ qiáng

HSK 7–9

Meaning

一种网络安全设备，用于监控和控制网络流量，阻止未授权的访问。

A network security device that monitors and controls network traffic, blocking unauthorized access.

常用于计算机网络安全领域，也可比喻为阻挡不良事物的屏障。

Commonly used in computer network security, also metaphorically as a barrier against harmful things.

1 公司安装了防火墙来保护内部网络。 (The company installed a firewall to protect the internal network.)
2 防火墙可以阻止恶意软件入侵。 (Firewalls can prevent malware intrusion.)
3 在互联网时代，防火墙是网络安全的第一道防线。 (In the Internet age, firewalls are the first line of defense for cybersecurity.)
4 这个软件自带的防火墙功能很强大。 (The firewall feature built into this software is very powerful.)
5 我们需要建立心理防火墙来抵御负面情绪。 (We need to build a psychological firewall to resist negative emotions.)

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