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

記得要洗手
Remember to wash your hands hard.

Cantonese Sentence Breakdown

記得 gei3 dak1
remember
jiu3
important
vital
to want
to ask for
will
going to (as future auxiliary)
may
must
(used in a comparison) must be
probably
if
essential points
necessary
necessity
to desire
to need
should
kan4
diligent
洗手 sai2 sau2
(verb) (of gangster term) to retire