She says the United States must ensure the same mistakes are not made again.

VOA: standard.2009.07.31

So hopefully we will not make the same mistakes twice.

所以我希望我们不要两次犯同一个错误。

哈佛公开课 - 计算机科学课程节选

So hopefully we will not make the same mistakes twice.

所以我希望我们不要两次犯同一个错误。

哈佛公开课 - 计算机科学课程节选