How to pronounce 戒嚴 in Cantonese (6 out of 7):

台灣那時是戒嚴時期
Taiwan was a time of monopoly.

Cantonese Sentence Breakdown

台灣 toi4 waan1
Taiwan
那時 naa5 si4
then
si6
is
戒嚴 gaai3 jim4
martial law
時期 si4 kei4
period of time