How to pronounce 防火牆 in Cantonese (4 out of 5):

WAF補充傳統防火牆嘅不足
WAF is a complement to the traditional firewall.

Cantonese Sentence Breakdown

補充 bou2 cung1
supplement
傳統 cyun4 tung2
customs
防火牆 fong4 fo2 cheung4
firewall
koi3
indignant
generous
to sigh (with emotion)
不足 insufficient
insufficient