sheltertrench

例句：

1. 1. The sheltertrench is a popular tourist attraction in the city.
   避难所隧道是这个城市的一个热门旅游景点。
2. 2.The workers were forced to dig a sheltertrench to escape the flood.
   工人们被迫挖掘一个避难所隧道来躲避洪水。
3. 3.The sheltertrench was used as a safe haven for people during the war.
   避难所隧道在战争期间被用作人们的安全庇护所。