She was the first person to arrive at the party.
她是第一个到达派对的人。
My second attempt at baking was much better.
我第二次尝试烘焙时效果好多了。
He finished in third place in the race yesterday.
他在昨天的比赛中获得了第三名。
The fourth chapter of the book is very interesting.
这本书的第四章非常有趣。
She celebrated her fifth birthday with a big cake.
她用一个大蛋糕庆祝她的第五个生日。
We live on the sixth floor of the apartment building.
我们住在公寓楼的第六层。
His seventh attempt finally succeeded after much effort.
经过多次努力，他的第七次尝试终于成功了。
The eighth day of the trip was the most exciting.
旅行的第八天是最令人兴奋的。
She was the ninth speaker at the conference today.
她是今天会议的第九位发言者。
We are planning a surprise for his tenth anniversary.
我们正在为他的第十周年纪念日策划一个惊喜。
ordinal number 序数
ordinal position 序位
ordinal scale 序列量表
ordinal data 序数据
ordinal ranking 序列排名
ordinal classification 序列分类
ordinal indicator 序数指示符
复数: ordinals;
