Clostridium welchii

例句：

1. 1. Clostridium welchii is a type of bacteria that can cause food poisoning.
   魏氏梭菌是一种可以引起食物中毒的细菌。
2. 2.The research on Clostridium welchii has shown promising results in treating certain diseases.
   关于魏氏梭菌的研究在治疗某些疾病方面取得了令人鼓舞的成果。
3. 3.Clostridium welchii is a common contaminant in food, and its presence can be harmful to human health.
   魏氏梭菌是食物中常见的污染物，其存在对人类健康有害。