Some cyanobacteria make toxins that can damage the liver, intestines and nervous system if ingested, forcing locals to use bottled drinking water.

一些蓝藻能制造毒素，如果摄入它们，就可能损伤肝脏、消化道和神经系统，这迫使当地居民饮用瓶装水。

youdao

He begins by saying that you should first purify the whole body-the stomach, intestines, nervous system and other systems.

他一开始就讲到，首先要净化包括胃、肠、神经系统及其它各类系统在内的整个身体。

youdao

Later research found that receptors for the system existed in the lungs and the intestines.

后来的研究发现那些受体也存在于肺和肠道。

youdao

Crohn's disease and colitis, two similar diseases in which a person's immune system violently attacks the lining of the intestines, may be more common now than in the days before sanitation and effective drugs because there aren't enough intestinal worms to keep immune systems busy.

FORBES: Those Resourceful Bugs

If ingested, it causes nausea, vomiting and internal bleeding of the stomach and intestines, followed by failure of the liver, spleen and kidneys, and death by collapse of the circulatory system.

CNN: What is ricin?