How to pronounce 八年 in Cantonese (7 out of 8):

前總統奧巴馬在任八年之間
Former President Obama was in office for eight years.

Cantonese Sentence Breakdown

前總統 cin4 zung2 zyu2
former president
奧巴馬 ou3 baa1 maa5
Obama
zoi6
(located) at
(to be) in
to exist
in the middle of doing sth
(indicating an action in progress)
to depend on
to rest with
to be alive
jam6
to assign
to appoint
to take up a post
office
responsibility
to let
to allow
to give free rein to
no matter (how, what etc)
classifier for the number of terms served in office, post, or rank
八年 baat3 nin4
eight years
之間 zi1 gaan1
between