primulinus

例句：

1. 1. Primulinae is a family of protozoa that live in freshwater environments.
   Primulinae是一类生活在淡水环境中的原虫。
2. 2.The study of Primulinae has led to the discovery of new antibiotics.
   研究Primulinae导致了新抗生素的发现。
3. 3.Primulinae are small, single-celled organisms that play important roles in ecosystems.
   Primulinae是微小的单细胞生物，它们在生态系统中扮演着重要的角色。