eighteenth

第十八的、第十八个

She celebrated her eighteenth birthday with a few close friends.

她和几个好友一起庆祝十八岁生日。

第十八、第十八个

He finished eighteenth out of more than two hundred runners.

他在两百多名跑者中拿到第十八名。

十八日、十八号

The results will be announced on the eighteenth of next month.

结果将在下个月十八日公布。

十八分之一

Each investor owns roughly an eighteenth of the company.

每位投资人约持有公司十八分之一的股份。