protozoologist

例句：

1. 1.He is a renowned protozoologist who has made significant contributions to the field of microbiology.
   他是一位著名的原生动物学家，对微生物学领域做出了重大贡献。
2. 2.The protozoologist discovered that some species of algae are capable of producing antibiotics.
   这位原生动物学家发现某些藻类能够产生抗生素。
3. 3. In his research, the protozoologist focused on studying the behavior and life cycles of various species of protozoa.
   在他的研究中，这位原生动物学家专注于研究各种原生动物的行为和生命周期。