flotative

例句：

1. 1. The ocean is home to a vast array of floratives.
   海洋是各种浮游生物的家园。
2. 2.Plankton play a crucial role in the food chain.
   浮游生物在食物链中起着关键作用。
3. 3.Phytoplankton are often referred to as "sea plants" due to their unique adaptations.
   由于其独特的适应能力，浮游植物常被称为“海植物”。