nine的序数是ninth。英 [nanθ] 美 [nanθ] ord.第九n.九分之一复数 ninths
例句
It\'s also called the Double Ninth Festival.
这又叫重阳节
It is celebrated on the ninth day of the ninth lunar month.
在农历九月初九庆祝。
水利万物而不争,
而万物莫能与之争。