Shutting off your gas can be crucial to stopping fires.

- 关闭煤气对于灭火至关重要。

And a firing operation initiated by those boots on the ground creating a human-made line of fire, with the goal of stopping the fire in this stubborn dry terrain.

而这些地面上穿着靴子的消防人员创造了一条人为的防火线，用以在这个顽固的干燥地形上阻止火势蔓延。