How to pronounce 山區 in Cantonese (7 out of 9):

毛澤東宣佈喺江西山區
Mao Zedong declared himself in the Jiangxi mountains.

Cantonese Sentence Breakdown

毛澤東 mou4 zaak6 dung1
Mao Zedong
宣佈 syun1 bou3
declare
hai2
in
江西 gong1 sai1
Jiangxi
山區 saan1 keoi1
mountainous area