十二分之一

例句：

1. 1. The number of students in the class is sixteen.
   班上的学生有十六个。
2. 2. She counted the pennies she had collected for her birthday.
   她数了她收集的硬币，准备给她的生日礼物。
3. 3. The book has sixteen chapters.
   这本书有十六章。