living tissue specimen

例句：

1. 1.The pathologist examined the living tissue specimen to determine the cause of death.
   病理学家检查了活组织标本以确定死因。
2. 2.The medical team collected a living tissue specimen for further analysis.
   医疗团队收集了一个活组织标本以便进一步分析。
3. 3. The researcher used a living tissue specimen to study the effects of aging on the brain.
   研究者使用一个活组织标本来研究衰老对大脑的影响。