digestive tube

例句：

1. 1. The doctor advised her to take a rest and drink plenty of water.
   医生建议她休息并多喝水。
2. 2. The scientist conducted experiments on the digestive system of the animal.
   科学家对动物的消化系统进行了实验。
3. 3.The patient was given a diet rich in fiber to aid digestion.
   病人被给予富含纤维的饮食以帮助消化。