ninety

名词 ninety:

1. the cardinal number that is the product of ten and nine
   同义词：90, XC

形容词 ninety:

1. being ten more than eighty
   同义词：90, xc

1. Over ninety countries ratify an agreement to ban the use of these chemicals.
   九十多个国家批准了一项禁止使用这些化学品的协议。
2. Mr Hobbs has had several severe illnesses in the last few years, each of which could easily have finished him off. But he's like a cat with nine lives and will probably live to see ninety.
   在最近几年中，霍布斯先生得了几次重病，每次都可能容易地夺去他的生命。但是，他却像有九条命的猫，很有可能活到90岁。
3. He must be going on for ninety.
   他准有九十岁了。
4. He was born in the nineties of the nineteen century.
   他生于十九世纪九十年代。

nine.ty

n.（名词）
【复数】 nine.ties
The cardinal number equal to 9 × 0.
九十：与9乘以0相等的基数
nineties
nineties
Often Nineties The decade from 90 to 99 in a century.
常作 Nineties 九十年代：在一个世纪中从90到99年的十年时间
A decade or the numbers from 90 to 99:
介于90到99之间的时间或数字：
例句：
My grandparents are in their nineties. During the heat wave, the temperature stayed in the nineties.
我的祖父母已经九十多岁了。热浪来袭期间，温度保持在九十度

来源：
Middle English ninti
中古英语 ninti
from Old English nigontig * see newô
源自 古英语 nigontig *参见 newô

【引伸】
nine.ty
adj.（形容词）
pron.（代词）