How to pronounce 改下 in Cantonese (3 out of 4):

你不如改下再交啦
You'd better change it.

Cantonese Sentence Breakdown

nei5
you (informal, as opposed to courteous 您nín [您])
can be used to refer to an unspecified person
不如 bat1 jyu4
not as good as
改下 goi2 haa6
modify a bit
zoi3
again
gaau1
to hand over
to deliver
to pay (money)
to turn over
to make friends
to intersect (lines)
to exchange
to come into contact with
to come close to
to join
to alternate
to mate
simultaneously
to connect
la5
“now”, with an connotation of doubt
surprise
disapproval