sterile product

例句：

1. 1. The sterile soil was unable to support any plant growth.
   贫瘠的土地无法支持任何植物生长。
2. 2. The farmer used a sterile technique to ensure the quality of his crops.
   农民使用一种无菌技术来确保他的作物质量。
3. 3. The sterile environment made it difficult for the animals to reproduce.
   无菌环境使得动物难以繁殖。