bismoid

例句：

1. 1.Bifidobacterium is a type of bacteria that can help improve digestion.
   双歧杆菌是一种可以帮助改善消化的细菌。
2. 2.The study found that bifidobacterium could reduce the risk of obesity and diabetes.
   研究发现，双歧杆菌可以减少肥胖和糖尿病的风险。
3. 3. The researchers isolated bifidobacterium from the human gut microbiome.
   研究人员从人体肠道微生物群中分离出了双歧杆菌。