marl

例句：

1. 1. The farmer used marl to enrich the soil.
   农民用泥炭来改良土壤。
2. 2. The marl is suitable for growing vegetables in the garden.
   这种泥炭适合在花园里种植蔬菜。
3. 3. The marl was used as a fuel source during the industrial revolution.
   在工业革命期间，泥炭被用作燃料来源。