How to pronounce 嗰頭 in Cantonese (3 out of 5):

點知佢哋用力嗰頭
How do you know they're using that power?

Cantonese Sentence Breakdown

點知 dim2 zi1
"how would I know?"; "who knows?"; "God knows"; "how is one to know"; "who would have thought"; "who would have guessed"; "only to"
佢哋 keoi5 dei6
(pronoun) they
用力 jung6 lik6
exert effort
嗰頭 go2 tau4
that side