How to pronounce 官方語言 in Cantonese (3 out of 4):

我會說它是因為它是香港其中一種官方語言
I would say it's because it's one of the official languages in Hong Kong.

Cantonese Sentence Breakdown

ngo5
I
me
my
us
we
our
self
wui6
a moment (Taiwan pr. for this sense is [huǐ])
metropolitan
gatherings union
to meet
to catch up
syut3
to speak
to say
to explain
to scold
to tell off
a theory (usually in compounds such as 日心说 heliocentric theory)
to criticize
to try to influence someone to do something
to mean
to1
it
other
used as a meaningless mock object
si6
is
因為 jan1 wai6
due to
香港 hoeng1 gong2
Hong Kong
其中 kei4 zung1
amongst
一種 yat1 zung2
a kind
官方語言 gun1 fong1 jyu5 jin4
official language