1.The major genera with the largest representation in the oral cavities include: streptococcus, prevotella, haemophilus, rothia, veillonella, neisseria, fusobacterium, and porphyromonas.

口腔中的微生物主要包括以下几个大：链、普、嗜血杆、罗、韦荣、奈瑟、梭杆与卟啉。

2.The researchers also found that the type of bacteria in question, which is a very common resident of the mouth called fusobacterium, could actually outright kill some cancer cells, at least in a petri dish setting.

研究人员还发现，这种细是口腔中非常常见的一种叫做梭杆的细，它实际上可以直接杀死一些癌细，至少在培养皿中是这样。