关键的一点是，拉格朗日拟序结构中的界限可以在群体间互换，正如一个人被挤进了错误的人群接着随着人群驶向错误的方向。

Crucially, they form a barrier to exchange between groups, as anyone who has been caught up in a crowd and pulled inexorably in the wrong direction will know.

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这时就在有着不同目的地的不同人群间就浮现一种不断移动的界限，这些界限就是拉格朗日拟序结构。

What emerges is a shifting pattern of borders between groups of people with different goals. These borders are Lagrangian coherent structures.

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然而选民们似乎相信她懂得在哪里画上界限：她对于欧宝的救助说是，但对已在6月9日提出破产申请的Ar candor说不(参见文章)。

But voters seem to trust her to know where to draw the line: she said yes to the Opel bail-out, but no to Arcandor, which filed for bankruptcy on June 9th (see article).

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