subsoil /'sʌbsɒil/ 📖 中文释义 n. 下层土, 底土vt. 掘起...的底土 🧩 词形变化 复数 subsoils现在分词 subsoiling 📘 English Definition(英文释义) n. the layer of soil between the topsoil and bedrock ← subsocial S 字母词表 subsoil drain →