How to pronounce 大熱 in Cantonese (8 out of 9):

咁可能對上既大熱BTRG或者EMC
It could be a combination of BTRG or EMC.

Cantonese Sentence Breakdown

gam3
so (Cantonese)
Mandarin equivalent: 这样zhèyàng [这样], like this
可能 ho2 nang4
(modal verb) can
對上 deoi3 seong6
face
gei3
already
大熱 daai6 jit6
very hot
或者 waak6 ze2
or