Although e-bikes first appeared in the 90s, cheaper options and longer-lasting batteries are breathing new life into the concept.

虽然电动自行车最早出现在上世纪90年代，但更便宜的选择和更持久的电池正在给这一概念注入新的活力。

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But this was the end of the 90s.

但是在90年代末。

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AOL in the 90s had scaling problems.

美国在线在90年代有过规模问题。

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If your grandparents and parents lived into their 90s and remained relatively healthy until the end, there's a pretty good chance you will,too.

VOA: standard.2010.07.14

Another big question that came up particularly starting in the 70s, women's movement. But in the 80s and into the 90s was a movement called "women's rights are human rights".

另一个重要问题就是,从70年代开始的女权运动,但是，在八九十年代时，另一场运动发展起来,叫做，“女权即人权“

普林斯顿公开课 - 人性课程节选

In the 80s and the 90s, you had a very... economic system was very... you had a lot of tiers.

在八九十年代，你有一个很……经济体制很……分很多层次。

纽约的负面变化 - SpeakingMax英语口语达人

Memory manufacturers had to live through a squeeze like this in the 90s and 2000s.

FORBES: Should Intel Split Itself in Two?

Many analysts are confident that the new boom won't explode like the 90s bubble burst.

CNN: Social networking fuels new Web boom

Since the 90s, religion and holiday traditions have made their way back into households.

FORBES: Hidden Messages In Presidents' Orthodox Easter Greetings