短語詞組短語oral -cavity teeth 口腔齒oral cavity cleaning 口腔清潔oral cavity flora 口腔菌群primitive oral cavity 原始口腔oral cavity bleeding 口腔出血oral cavity germ 口腔病菌oral cavity infection 口腔感染oral cavity pressure 口腔壓proper oral cavity 固有口腔 返回 oral cavity