How to pronounce 反口 in Cantonese (5 out of 6):

為佢係貿易協議反口製造非常合理既原因
It's a very reasonable reason to make it a trade deal.

Cantonese Sentence Breakdown

wai6
because of
for
on account of
on behalf of
by (in the passive voice)
heoi5
he
she
it (Cantonese)
Mandarin equivalent: 他tā [他]
hai6
(Cantonese) to be
to connect
to relate to
to tie up
to bind
to be (literary)
to involve
relation
relationship
consequence
yes
indeed
right
貿易 maau6 jik6
trade
協議 hip3 ji5
agreement
反口 faan2 hau2
go back on one's word
製造 zai3 zou6
manufacture
非常 fei1 seong4
very
合理 hap6 lei5
justified
gei3
already
原因 jyun4 jan1
reason