How to pronounce 一時間 in Cantonese (5 out of 8):

一時間火勢向四周圍蔓延
In an instant, the fire spread all around.

Cantonese Sentence Breakdown

一時間 yat1 si4 gaan1
for a while
火勢 fo2 sai3
fire intensity
hoeng3
towards
四周圍 sei3 zau1 wai4
everywhere; all around; surrounding
蔓延 maan6 jin4
spread