intrastitial

例句：

1. 1. The surgeon performed the procedure inside the patient's body.
   外科医生在病人体内进行了手术。
2. 2. The researcher discovered a new gene in the animal's intrastitial fluid.
   研究者在动物的体液中发现了一种新的基因。
3. 3.The pathologist examined the tissue samples from the patient's intrastitial cavity.
   病理学家检查了患者体腔内的组织样本。