凡是通过第一次测试的人，第二次可以免试。

Those who passed the first test are excused from the second one.

youdao

因此，我的理论是边学边用，您可以回顾，第二次可以学习更多。

So, my take-away is that as you learn something and then apply it, you can go back and learn more on a second pass.

youdao

这个国家的饮食问题可以追溯到第二次世界大战。

The problems with the nation's cuisine can be traced back to the Second World War.

youdao

If you knew only the third derivative of the function, you can have something quadratic in t without changing the outcome.

如果方程里有三阶导数,你就可以引入一个二次项,但是结果却不会变

耶鲁公开课 - 基础物理课程节选

If you're taking two derivatives you can add a constant and something linear in t.

如果你要二次求导,你可以添加一个一次项和常数项

耶鲁公开课 - 基础物理课程节选

The only other time we've seen a boom like this was right after World War II and that's shown by this line here; that wasn't as big.

我们可以看到,类似的繁荣,只在第二次世界大战之后出现过,就像这条线所显示的,这个增量不大

耶鲁公开课 - 金融市场课程节选