How to pronounce 熱心 in Cantonese (6 out of 7):

呢個賣家非常之熱心 又非常之好人
This salesman was very enthusiastic and very kind.

Cantonese Sentence Breakdown

呢個 ni1 go3
this
賣家 maai6 gaa1
seller
非常之 fei1 soeng4 zi1
very
熱心 jit6 sam1
enthusiastic
jau6
(once) again
also
both... and...
and yet
(used for emphasis) anyway
and (used in the context when talking about fractions)
in adddition
好人 hou2 jan4
good person