stomachus

例句：

1. 1. He had a stomachacheand couldn't eat anything for thepast few days.
   他胃痛了好几天，什么也没吃。
2. 2. The patient was given anenema to relieve his stomachache.
   病人被给了一个灌肠来缓解他的胃痛。
3. 3. She felt her stomach churningas she tried to swallow the soup.
   她试图吞下汤时感到胃在翻腾。