Ten or twenty years ago, you could buy milk in returnable, refillable glass bottles, and many people recycled voluntarily.

十几二十年前，你买到的牛奶会装在可回收、可重复灌装的玻璃瓶里，许多人也自愿做回收工作。

youdao

They usually operated in bands between ten and twenty strong and relied for survival on difficult terrain and bad transport.

他们通常以10到20人的队伍作战，很坚强，依靠艰难的地形和糟糕的交通条件生存下来。

youdao

Women's participation dropped to one in ten cases after 1719, and to one in twenty by the 1770s.

1719年以后，女性的参与率下降到十分之一，到了17世纪70年代，这一比例降到了二十分之一。

youdao

Cigarette production in the United States more than doubled in the ten years between nineteen eighteen and nineteen twenty-eight.

VOA: special.2010.12.30

That's because it started out that way; when the federal government wasn't involved in those sorts of things and somehow, we never had the in fact, it's talked about--we should-- maybe we'll see it in the next ten or twenty years.

因为从一开始就是分开的,当时的联邦政府还没有介入监管,我们从来没有过...,实际上有一种说法,我们应该,也许10年或20年内,统一监管能够实现

耶鲁公开课 - 金融市场课程节选

One of the real surprising findings in my field over the last ten/twenty years has been that the acquisition of sign languages has turned out to be almost exactly the same; in fact, as far as we know, exactly the same as the acquisition of spoken languages.

过去的十到二十年间,在我的研究领域里最令人吃惊的发现之一就是,各种手语的获得过程,被证明几乎是完全相同的,实际上据我所知,和口语语言的获得过程是完全相同的

耶鲁公开课 - 心理学导论课程节选

Twenty thousand places in the last ten years compared with twenty thousand over twenty years.

BBC: Jack Straw MP. photo courtesy Jeff Overs

Reproductions of the murals were printed on two million postage stamps, issued in ten and twenty pfennig denominations.

FORBES: So You Think You Wouldn't Be Bamboozled By Lothar Malskat's Art Forgeries? [Book Excerpt #2]

These are only a sampling of the many initiatives implemented in our school that helped bring about the dramatic change from being in the bottom ten to one of the top twenty schools in the state.

WHITEHOUSE: Developing an Action Plan for Success