sub-soil

基本解释

• n.底土

同根派生

英汉例句

• Influence of uneven soft sub soil on a brick building
  不均勻軟弱下臥層對砌躰結搆的影響
• I had to sub for the referee, who was sick.
  裁判病了，我得代爲裁判。
• Some plants push their roots deep into the soil.
  一些植物的根深深長入土中。
• Such crops won't grow in limy soil.
  這類作物不能在石灰質的土壤中生長。
• What shall we grow in this alkaline soil?
  我們應該在堿性土壤裡種什麽？