How to pronounce 開大 in Cantonese (2 out of 6):

開大炮 打洋船
Open cannons, hit ships.

Cantonese Sentence Breakdown

開大 hoi1 daai6
to open wide; to turn up; to defecate
paau3
cannon M: 座zuò [座]
firecracker
ding2
to take the lead
joeng2
silver dollar or coin
syun4
boat