施工结束后，工地上堆满了碎砖和混凝土块等建筑废料。

After the construction, the site was covered with piles of ___detritus like broken bricks and concrete fragments.

池塘底部堆积着大量的枯枝落叶，这些有机碎屑为水生生物提供了食物来源。

The bottom of the pond is covered with layers of ___detritus, which serves as a food source for aquatic life.

海滩上散落着游客留下的垃圾和各种海洋废弃物。

The beach was littered with the ___detritus left by tourists and washed-up ocean debris.