gastrovascular cavity

例句：

1. 1.The gastrovascular cavity is the space between the stomach and the esophagus.
   胃血管腔是胃和食管之间的空间。
2. 2.The gastrovascular cavity plays a crucial role in digestion.
   胃血管腔在消化过程中起着至关重要的作用。
3. 3. The gastrovascular cavity is filled with blood, lymph, and other fluids.
   胃血管腔充满了血液、淋巴和其他液体。