Travel to learn happy go lucky, indifferent point, walk to stop. Don't be afraid to miss anything, because on the road you have harvested freely in a good mood.

旅行要学会随遇而安，淡然一点，走走停停，不要害怕错过什么，因为在路上你就已经收获了自由自在的好心情。

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We discuss two important properties of indifferent curves, point out the equivalence of them and obtain the method of construct the indifferent curve.

探讨了确定无差异曲线族的两个重要条件，指出了两条件的等价性，并在此条件下得出结构无差异曲线族的方法。

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On Monday, Greuel sent off a final round of recorded endorsements from former President Bill Clinton, in whose administration she once worked, while Garcetti was on campaign stops arguing a simple point to mostly indifferent residents: The election matters.

NPR: Garcetti Holds Slim Lead As LA Picks New Mayor