croy

例句：

1. 1. The construction site is covered with a layer of dust from the construction machinery.
   施工现场被建筑机械扬起的灰尘覆盖。
2. 2. The new bridge is made of high-quality steel, which is durable and strong.
   这座新桥是用高质量的钢材建造的，既耐用又坚固。
3. 3. The steel industry is one of the most important industries in the world.
   钢铁工业是世界上最重要的工业之一。