sterile filling

例句：

1. 1. The farmer's fields are barren and dry.
   农民的田地是贫瘠和干燥的。
2. 2.The test results were infertile, meaning they did not produce any viable offspring.
   测试结果不育，意味着它们没有产生任何可育后代。
3. 3. The sterile cells could not be regenerated, indicating a lack of genetic material.
   这些不育细胞无法再生，表明缺乏遗传物质。