防火墙

Traditional (Taiwan): 防火牆

On the HSK 7-9 vocabulary list, at CEFR level C1.

fánghuǒqiáng ㄈㄤˊ ㄏㄨㄛˇ ㄑㄧㄤˊ

    • firewall

Character by character

Classifiers (measure words)

Sources