nines complement

例句：

1. 1. There are nine students in my class.
   我班有九名学生。
2. 2. The number nine is a lucky number in some cultures.
   在某些文化中，数字九是幸运的。
3. 3. She wore a nine-inch dress for the party.
   她穿着一件九英寸长的裙子参加了派对。