a horse and cart的用法和样例：
- Mama's going to buy you a horse and cart.
- He had a horse and cart that he would use to take the goods to market.
- Gradually, docks began to be popular and they could be beautifully decorated. One clock was in the shape of a cart with a horse and a driver.
- A mule is a cross between a horse and an ass.
- Mules are a cross between a horse and an ass.