Topocart

例句：

1. 1.We used a Topocart to navigate through the city's traffic.
   我们用一个Topocart来导航穿过城市的交通。
2. 2.The Topocart showed us where we were going next.
   Topocart显示了我们接下来要去哪里。
3. 3. The Topocart helped me find my way back to the hotel.
   Topocart帮助我找到了回酒店的路。