The temperature must be in the nineties today.

今天的气温肯定有九十多度。

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。

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。

She was not only modest, which was usual in the nineties, but she was beautiful, which is unusual in any decade.

她不仅谦虚，这在90年代很常见，而且她很漂亮，这在任何一个年代都是不寻常的。

You mean like the nineteen nineties?

你是说十九世纪九十年代之类的？