复数： ninetieths

We are celebrating our grandpa 's ninetieth birthday next week .

我们下周将庆祝爷爷90岁生日。

She is like the ninetieth person on the list .

她好像是名单上的第九十位。

The ninetieth anniversary journal of the sarawak chinese methodist church .

砂拉越基督教华人卫理公会九十周年纪念刊。

It 's my ninetieth birthday today .

今天是我第90个生日。

In his ninetieth year he had lost the ability to speak .

他90岁时已经丧失了说话能力。