When we have just a single bond in them molecule, you have all the free rotation you want, you can just spin it around, there's nothing keeping it in place.

当我们在分子力只有一个单键时，你可以随意旋转，你可以让它转起来，没有什么东西能固定住它。

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So to imply that now you can eat all you want, you have an issue to free ticket if you will, some people might consider not the right message.

假如说现在你可以吃任何你想吃的东西,这里面存在一个免费门票的问题,有些人对营销信息的理解并不正确

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