We have about twenty-five copies, so don't take one if you don't need it.

有25份，已经有了的同学不要再拿了。

耶鲁公开课 - 文学理论导论课程节选

If you collapse data, as we did in this one paper, across all developed and developing countries here's what we're expecting in the next twenty-five years.

如果想改变这个情况,就像这页幻灯片中指出的,改变所有发达国家和发展中国家,对未来二十五年的情况的预期

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选