的确，令我们羞愧的是，在历史的记忆中，最致命的入侵都是由单细胞有机体引起的。 比如霍乱、腹股沟腺炎和肺结核。
Indeed, it is humbling to remember that some of history’s most deadly invasions were carried out by single-cell organisms, such as cholera, bubonic plague, and tuberculosis.