How to pronounce 潤肺 in Cantonese (4 out of 5):

潤肺止咳嘅作用
It has a pulmonary-suppression effect.

Cantonese Sentence Breakdown

jau6
also
again
潤肺 jeon6 fai3
moisten the lungs
止咳 zi2 haak1
to stop coughing
koi3
indignant
generous
to sigh (with emotion)
作用 zok3 jung6
function