noun [抽象名词] 九十
It was decided she had to stay another ninety days. 经决定，她必须再呆九十天。
adjective [原级] 九十的；九十岁的
By this time she was in her nineties and needed help more and more frequently. 到这时她已经九十多岁了，越来越频繁地需要帮助。
numeral [基数词] 九十
These trends only got worse as we moved into the nineties. 当我们进入了90年代，这些风气只不过变得更糟了。
- ninety 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 37 The Westhaven Express
- 网友用 “Ninety” 造句精选
- Her weight was under ninety pounds. 她的体重不足90磅。