gastric pit

例句：

1. 1. The stomachpit is where food is digested andabsorbed.
   胃底是食物消化和吸收的地方。
2. 2.The doctor found a gastric pit tumorin her stomach.
   医生在她的胃里发现了一个胃底肿瘤。
3. 3. The patient was admitted tothe hospital for further examination of the gastric pit.
   患者被收治入院，以便进一步检查胃底。