cinder track

例句：

1. 1. The train tracks are lined with cinder blocks to prevent the train from derailing.
   火车轨道被煤渣砖砌成，以防止火车出轨。
2. 2.The workers had to clear the cinder track before they could start their work.
   工人们必须先清理煤渣轨道，才能开始他们的工作。
3. 3. The cinder track was a hazardous area for pedestrians and cyclists.
   煤渣轨道对行人和自行车骑行者来说是危险的区域。