Williams says she hopes the study will interest drug companies that want to explore the healing properties of blue and green clays.

威廉姆斯称她希望这项研究能让一些探索蓝色和绿色泥土药效的药品公司感兴趣。

Here is how the blue clay works. Iron is one of the chemicals found in the clay. The bacteria need the iron to survive.

下面就是这种蓝色泥土的工作原因，这种泥土中存在铁等化学元素，这种需要铁来生存。