How to pronounce 開大 in Cantonese (5 out of 6):

下次嚟開大
Come to Osaka next time.

Cantonese Sentence Breakdown

下次 haa6 ci3
next time
lei4
used in transliteration
to come
used as a final particle to add emphasis
開大 hoi1 daai6
to open wide; to turn up; to defecate
baan6
slope
hillside
hillside farm