immunology of the gut

例句：

1. 1. The study ofthe immune system is an important field inimmunology.
   研究免疫系统是免疫学的一个重要领域。
2. 2. Immunotherapy involves using drugsto boost the body's natural immunityagainst cancer.
   免疫疗法涉及使用药物增强人体对癌症的自然免疫力。
3. 3. Theresearch on the immune systemhas led to many breakthroughs in medical science.
   对免疫系统的研究已经导致了许多医学科学的突破。