noun 下载 🔗分享 古土壤，化石土壤 A layer of fossil soil buried beneath other sediments or deposits. Examples : "While digging the foundation for the new school building, construction workers discovered paleosols, ancient soils that provided clues about the area's past environment before the current topsoil existed. " 在为新建学校大楼挖掘地基时，工人们发现了古土壤（化石土壤），这些古老的土壤为我们提供了关于该地区过去环境的线索，让我们了解在现有表层土壤形成之前的景象。 geology archaeology environment nature 与AI对话词汇游戏阅读练习
