vein islet number

例句：

1. 1.The study found that the number of vein islets in the brain was related to cognitive function.
   研究发现，大脑中静脉岛的数量与认知功能有关。
2. 2. The doctor ordered a blood test to determine the number of vein islets in her body.
   医生下令进行血液检查，以确定她体内静脉岛的数量。
3. 3. The researcher analyzed the data to find out how many vein islets were present in the sample.
   研究者分析了数据，以找出样本中有多少静脉岛存在。