thecalutein

例句：

1. 1.The calutein in the seawater is a key factor in determining its pH level.
   海水中的钙盐是决定其pH值的关键因素。
2. 2. The calutein in the soil plays an important role in nutrient cycling.
   土壤中的钙盐在养分循环中起着重要作用。
3. 3. Researchers have been studying the calutein in coral reefs for decades, hoping to find ways to protect them.
   研究人员已经研究珊瑚礁中的钙盐几十年了，希望找到保护它们的方法。