The nona number in the sequence is 9.
序列中的第九个数字是9。
The nona month of the year is September.
一年的第九个月是九月。
He finished the race in the nona position.
他在比赛中获得了第九名。
She lives on the nona floor of the building.
她住在这栋楼的第九层。
The nona chapter of the book is very interesting.
这本书的第九章非常有趣。
