Stomach and intestines tunnel

• 胃肠道

Stomach and intestines tunnel的用法和样例：

例句

1. The same contractions that cause your stomach to growl also clean out the GI tract.
   这些造成胃低鸣的收缩同时也清理了整个胃肠道。
2. The gastrin and the glucagon cells were not found in the alimentary canal.
   在胃肠道均未发现胃泌素细胞和胰高血糖素细胞。