现在看看在你认识的人中，还有多少人没有违过法？
Now, among the people you know, how many have never broken the law?
我们以前说过，在西方的音乐里有音乐记谱法。
We said before that in Western music we have musical notation.
接下来要讲到的，就是你们可能听说过的拉格朗日乘数法。
And so what we will see is you may have heard of Lagrange multipliers.
法英两国在历史上曾达成过许多协议。
During the course of history, many agreements have been made between France and England.
费尔法斯太太告诉过你我去伦敦了吗？
费尔法斯太太告诉过你我去伦敦了吗？
应用推荐