How to pronounce 劳 in Cantonese (4 out of 6):

一个功
It's a merit.

Cantonese Sentence Breakdown

一个 jat1 go3
One;a
an
gung1
meritorious deed or service
achievement
result
service
accomplishment
work (physics)
merit
workmanship
efficacy
mourning garment
lou4
work