toilet train

例句：

1. 1.The toilet train was a popular topic in the town.
   流动厕所成为小镇上的一个热门话题。
2. 2.The city has implemented a new policy to improve the quality of its toilet trains.
   该市实施了一项新政策，以提高其流动厕所的质量。
3. 3. The train is designed to transport people from one part of the city to another, providing them with access to clean and safe toilets.
   这列火车旨在将人们从一个城市部分运送到另一个部分，为他们提供清洁和安全的厕所使用。