How to pronounce 開封 in Cantonese (4 out of 5):

不過,未開封~所以還是未知之數~
However, unopened ~ so still unknown ~

Cantonese Sentence Breakdown

不過 bat1 gwo3
however
mei6
not yet
開封 hoi1 fung1
(verb) Open sealed packaging (of product)
所以 so2 ji5
hence
還是 waan4 si6
or
未知之數 mei6 zi1 zi1 sou3
unknown number

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