Accessory vassal cavity tumor的用法和样例：
- Keywords Cystadenocarcinoma;Accessory vassal cavity tumor;Pathology;
- Methods 47 cases with posterior nasal cavity tumor underwent operation from the uvula side and palate main centre incision entry road, and the convenience and safety of such methods were evaluated.
- Wales was a vassal kingdom at that time.
- A radio is an accessory to a car.
- The vassal swore that he would be loyal to the king forever.