How to pronounce 用下 in Cantonese (3 out of 8):

當然實際用下來的感覺是否有快一倍就很難說
Of course, it's hard to say if it's actually going to be twice as fast.

Cantonese Sentence Breakdown

當然 dong1 jin4
(adverb) absolutely
實際 sat6 zai2
actual
用下 jung6 haa5
use a bit
來的 loi4 dik1
from
感覺 gam2 gok3
feeling
是否 si6 fau2
is or not
jau6
also
again
faai3
fast
一倍 jat1 pui5
100% more; double; twice
zau6
at once
right away
only
just (emphasis)
as early as
already
as soon as
then
in that case
as many as
even if
to approach
to move towards
to undertake
to engage in
to suffer
subjected to
to accomplish
to take advantage of
to go with (of foods)
with regard to
concerning
to yield oneself to
to compromise
will do
no other
to let
allow something be a certain way
according to
supposing
either…or
exactly
precisely
definitely
to accommodate
has
have been
to give in
han2
very
no4
an alternative form for 儺, rich
syut3
to speak
to say
to explain
to scold
to tell off
a theory (usually in compounds such as 日心说 heliocentric theory)
to criticize
to try to influence someone to do something
to mean