实际上，向量场，还是垂直于水平线，就像之前看到的那样，我只是想提醒一下大家。
Actually, they have a vector field is still pointing perpendicular to the level curves that we have seen, just to remind you.
不过，因为当今快节奏的生活方式，很多情况下我们更功利一些——我指的是‘钱’，不过我得友情提醒一下，钱只是手段，而不是目的！
But, because of the fast pace of life nowadays, we are bit more utilitarian or money-oriented. By my friendly reminder, money is just one of the means, not the purpose.
我只是想提醒你正视一下这现实。
提醒一下，这并不是我的怨念，只是每个人所扮演的角色都有所不同。
View. Mind you, it's not my sour grape , it's just that people have different role.
提醒一下，这并不是我的怨念，只是每个人所扮演的角色都有所不同。
View. Mind you, it's not my sour grape , it's just that people have different role.
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