quadriurate

例句：

1. 1. The quadruple-decker bus is a popular mode of transportation.
   双层巴士是一种流行的交通工具。
2. 2. The quadruple-decker bus has four floors and can hold up to 50 passengers.
   双层巴士有四层，最多可容纳50名乘客。
3. 3. The quadruple-decker bus is a great way to get around in a city.
   双层巴士是城市中一种很好的出行方式。