Nd-in glass

例句：

1. 1. The plant requires a lot of nitrogen to grow well.
   这种植物需要大量的氮来生长良好。
2. 2. Nitrogen is essential for the growth of plants and animals.
   氮对植物和动物的生长至关重要。
3. 3.The soil test showed that there was an excess of nitrogen in the area.
   土壤测试显示该地区氮含量过高。