emergency pump

例句：

1. 1.The emergency pump is used to prevent water from flooding the area.
   紧急泵用于防止水淹没区域。
2. 2. The fire department used an emergency pump to extinguish the flames.
   消防部门使用紧急泵扑灭了火焰。
3. 3. The emergency pump was crucial in saving lives during the flood.
   在洪水中，紧急泵起到了挽救生命的关键作用。