How to pronounce 預覽 in Cantonese (2 out of 3):

同時預覽3個鏡頭嘅拍攝畫面
And then you can see the images of the three cameras.

Cantonese Sentence Breakdown

同時 tung4 si4
at the same time
預覽 yu6 laam5
preview
go3
individual
this
that
size
classifier for people or objects in general or an action
indicates approximation when placed before numbers and after a verb
adds emphasis when added before a complement used with a verb
size
height
one
possessive particle
ten thousand dollars
bucks
鏡頭 geng3 tau4
lens
koi3
indignant
generous
to sigh (with emotion)
拍攝 paak3 sip3
take photograph
畫面 waa6 min6
scene