1、The Wallaces both died in their nineties in the early 1980s.
20世紀80年代初，華萊士夫婦都在他們九十多歲時去世。

2、By this time she was in her nineties and needed help more and more frequently.
到這時她已經九十多歲了，越來越頻繁地需要幫助。

3、See the dip in the early nineties that appears to be the next largest dive after the current one?
看到九十年代初期出現(xiàn)的那次跳水了嗎？僅次于當前這次大跳水的那個？

4、the nineties of the 20th century; 1990's
20世紀90年代

5、In fact, I know a woman in her nineties who runs and wins 10K races;
其實，我認識一個九十歲的老奶奶，參加了十公里賽跑，并且拿了冠軍；

6、The temperature must be in the nineties today.
今天的氣溫肯定有九十多度。