He bought paving bricks from Freetown for a children's play area.

他从Freetown废物管理回收工厂购买了用于儿童游乐区的铺路砖。

Workers there turn old tires into material used for paving bricks, floors and other goods that are in high demand in the country.

那里的工人将旧轮胎加工成用于铺地砖、铺地板的材料以及其他在该国需求量很大的商品。