mycosterol zymosterol

例句：

1. 1.This mineral is used in the production of glass.
   这种矿物用于制造玻璃。
2. 2. Mineral oil is a common lubricant for machinery.
   矿物油是机械常用的润滑油。
3. 3. The minerals in the soil are essential for plant growth.
   土壤中的矿物质对植物生长至关重要。
4. 1.Yeast extract is commonly used as a food additive.
   酵母提取物常作为食品添加剂使用。
5. 2.The yeast extract helps to improve bread flavor.
   酵母提取物有助于改善面包的口感。
6. 3.Yeast extract is a natural source of vitamins and minerals.
   酵母提取物是一种天然的维生素和矿物质来源。