Bacillues smegmatis

例句：

1. 1.The book is about the history of Bacillus smegmatis, a bacteria that causes food poisoning.
   这本书讲述了一种名为Bacillus smegmatis的细菌引起的食物中毒的历史。
2. 2.In the lab, we isolated this bacterium and studied its properties.
   在实验室里，我们分离出了这种细菌并研究了它的属性。
3. 3. This strain of bacteria has been used in medical treatments for years.
   这种细菌菌株已经用于医疗治疗多年。