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

穿過呢片參天古木
And then we crossed this ancient tree.

Cantonese Sentence Breakdown

穿過 cyun1 gwo3
pass through
ni1
this
pin3
thin piece
flake
a slice
to slice
to carve thin
partial
incomplete
one-sided
classifier for slices, tablets, tract of land, area of water
classifier for CDs, movies, DVDs etc
used with numeral 一yī [一]: classifier for scenario, scene, feeling, atmosphere, sound etc
to pare
KangXi radical number 91
參天 sam1 tin1
reaches the sky
gu2
ancient
old
paleo-
ancient times
things
antiquity
a surname
muk6
tree
wood
coffin
wooden
simple
numb
one of the eight ancient musical instruments 八音bāyīn [八音]
dull