burned sand

例句：

1. 1. The beach was littered withburned sand when the storm passed.
   风暴过后，海滩上到处都是烧焦的沙子。
2. 2.The old building had been burned down,leaving only burnt sand behind.
   那座老建筑被烧毁了，只剩下烧焦的沙子。
3. 3. The firefighters were tryingto contain the blaze by diggingout burnt sand.
   消防员们正在努力扑灭大火，通过挖出烧焦的沙子来控制火势。