noun 下载 🔗分享 表土,沃土 The most fertile soil, easiest to start new plants in. Examples : "Little grew on the farm, after the floods from the hurricane washed away the topsoil." 飓风带来的洪水冲走了农场的表土,导致那里寸草不生。 environment geology agriculture plant nature 与AI对话词汇游戏阅读练习