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

R一講書即刻晒書包
R says, "I'm going to pack a book".

Cantonese Sentence Breakdown

jat1
one
single
a (article)
as soon as
entire
whole
all
throughout
"one" radical in Chinese characters (Kangxi radical 1)
also pr. [yāo] for greater clarity when spelling out numbers digit by digit
first (positional)
one part of a fraction, such as 'a' quarter, an eighth
a short duration (when used with a verb)
each
same
dedicated
from the start
講書 gong2 syu1
teaching (spoken)
即刻 zik1 hak1
immediately
sai3
dry
書包 syu1 baau1
(noun) Backpack (of students for carrying textbooks)