How to pronounce 心知肚明 in Cantonese (2 out of 3):

民主黨自己當然心知肚明
The Democratic Party knows that.

Cantonese Sentence Breakdown

民主黨 man4 zyu2 dong2
Democratic Party
自己 zi6 gei3
myself
當然 dong1 jin4
(adverb) absolutely
心知肚明 sam1 zi1 tou5 ming4
to be made aware of without being informed
la5
“now”, with an connotation of doubt
surprise
disapproval