flat wagon

例句：

1. 1. The old man was riding a flat wagon to the market.
   那位老人正骑着一辆平底车去市场。
2. 2.The flat wagon was loaded with vegetables for the farmers' market.
   那辆平底车装满了蔬菜，准备运往农贸市场。
3. 3.The flat wagon was used to transport goods across town.
   那辆平底车被用来运送货物穿过城镇。