Now the mucosal tissue in the oral cavity can undergo several premalignant pathological changes.

口腔内的黏膜组织可经历数种癌前病理变化。

The oral cavity and oropharynx are lined by epithelium - and there are a few different types.

口腔和口咽被上皮覆盖，有几种不同类型的上皮。

The oral microbiota plays an important role in maintaining oral homeostasis protecting the oral cavity and preventing disease.

口腔微生物群在维持口腔内环境平衡、保护口腔以及预防疾病等方面，发挥着重要作用。

These microbes play an important role in maintaining oral homeostasis, protecting the oral cavity, and preventing disease development.

这些微生物在维持口腔内动态平衡、保护口腔与预防疾病等方面起到了重要作用。

The pizza goes in our oral cavity where we use our teeth to masticate, or chew the food up into small fragments.

披萨进入口腔后，我们用牙齿咀嚼食物，将食物嚼成小块。

Most of the oral cavity is lined by stratified squamous epithelium, so the majority of cancers that arise are squamous cell cancers.

口腔内大部分表面都由复层鳞状上皮覆盖，所以大部分口腔癌都属于鳞状细胞癌。

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属：链球菌属、普氏菌属、嗜血杆菌属、罗氏菌属、韦荣氏球菌属、奈瑟氏菌属、梭杆菌属与卟啉单胞菌属。

Many carcinogens come into contact with a wide area within the oral cavity and oropharynx, so the idea is that they cause field cancerization.

许多致癌物可以广泛接触到口腔和口咽内，故有一个猜想就是这些物质引发区域癌化。

The lips form the opening to the mouth, while the cheeks or bucca (buccae) form the borders of the oral cavity.

嘴唇形成口的开口，而脸颊或颊形成口腔的边界。

The structures within the oral cavity including the teeth, tongue, and palate, are involved in the chewing (mastication) and swallowing (deglutition) of food.

口腔内的结构包括牙齿，舌头和腭，它们对食物的咀嚼（粉碎）和吞咽（咽下）起作用。