microbiologist

例句：

1. 1. He is a renowned microbiologist who has made significant contributions to the field of microbiology.
   他是一位著名的微生物学家，为微生物学领域做出了重要贡献。
2. 2. The microbiologist discovered a new strain of bacteria that could be used for medical purposes.
   这位微生物学家发现了一种可用于医疗目的的新细菌菌株。
3. 3.Microbiologists study the interactions between living organisms and their environment, which is crucial for understanding ecosystem health.
   微生物学家研究生物与其环境的相互作用，这对于理解生态系统的健康至关重要。