前肠

例句：

1. 1. The doctor said that the patient had a serious problem with his stomach.
   医生说病人的胃有严重的病状。
2. 2. He decided to take a break from his work and go for a walk in the park.
   他决定从工作中抽身，去公园散步。
3. 3. We need to pay attention to our health and avoid diseases that affect the upper part of our body.
   我们需要关注健康，避免影响我们上部身体的疾病。