translation.en: So, one way you can test is just look at all diarrheal bacteria, and see whether or not the ones that tend to be more transmitted by water, tend to be more harmful.
translation.zh: 测试它的一个方法就是，仅仅等着看这些痢疾病菌 看看它们是不是更倾向于 通过水进行传播，更加的有害。