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

點解你又咁熟架呢
Why are you so familiar?

Cantonese Sentence Breakdown

點解 dim2 gaai2
(pronoun) why; how to explain; how come;
nei5
you (informal, as opposed to courteous 您nín [您])
can be used to refer to an unspecified person
jau6
(once) again
also
both... and...
and yet
(used for emphasis) anyway
and (used in the context when talking about fractions)
in adddition
咁熟 gam3 suk6
so familiar
gaa3
to support
classifier for planes, large vehicles, radios etc
to prop up
fight
quarrel
ni1
this