underground shelter

例句：

1. 1. We built an underground shelter in case of a natural disaster.
   我们建造了一个地下掩蔽所以防自然灾害。
2. 2.The soldiers huddled together in the underground shelter during the long night.
   士兵们在漫长的夜晚里挤在一起躲在地下掩蔽所里。
3. 3. The underground shelter was well-equipped with food and water supplies.
   地下掩蔽所配备了充足的食物和水供应。