How to pronounce 肆虐 in Cantonese (4 out of 5):

一直都喺人類社會入面肆虐
It's always been a social issue.

Cantonese Sentence Breakdown

一直 yat1 zik6
always
dou1
all
both
entirely
(used for emphasis) even
already
(not) at all
metropolis
capital
big city
the whole
elegant
refined
without exception
also
too
still
used in a sentence to add an inference or interrogative tone
hai2
in
人類 jan4 leoi6
humanity
社會 se5 wui2
(noun) community
入面 jap6 min6
inside
肆虐 si3 jok6
ravage