How to pronounce 樽頸 in Cantonese (3 out of 9):

會遇到嘅大樽頸
And that's the big bottleneck you're going to encounter.

Cantonese Sentence Breakdown

wui6
a moment (Taiwan pr. for this sense is [huǐ])
metropolitan
gatherings union
to meet
to catch up
遇到 jyu6 dou3
(verb) Bump into (someone)
koi3
indignant
generous
to sigh (with emotion)
taai3
an alternative form for the word太, too
樽頸 zeon1 geng2
bottle-neck
haa1
(particle equivalent to 啊 after a vowel, expressing surprise or doubt)