Sudan black

例句：

1. 1. The Sudan black is a popular choicefor its rich, dark color.
   苏丹黑是一种受欢迎的选择，因为它的颜色丰富、深沉。
2. 2. The Sudan black soil is knownfor its high fertility and abilityto support plant growth.
   苏丹黑土壤以其高肥力和支持植物生长的能力而闻名。
3. 3. The Sudan black market is aplace where goods are bought and sold withoutthe involvement of a government agency.
   苏丹黑市场是一个没有政府机构参与的买卖商品的地方。