apocynein

例句：

1. 1. The apocyanein in the water is very rare and valuable.
   水中的藻类非常稀有且珍贵。
2. 2. The apocyanein in the water is used to make cosmetics.
   水中的藻类被用来制作化妆品。
3. 3. The apocyanein in the water is also used as a natural preservative.
   水中的藻类也用作天然防腐剂。