concrete paving train

例句：

1. 1. The concrete pavingtrain is a popular mode of transportation inthe city.
   混凝土铺路列车是该市流行的交通工具。
2. 2. The concrete paving train wasused to transport heavy materials across the city.
   混凝土铺路列车被用来在城市间运输重物。
3. 3. The concrete paving trainhas been a significant source of employment formany years.
   混凝土铺路列车多年来一直是许多就业机会的来源。