The frame of this lounge chair folds upon itself into seven different seating positions including the arm chair shown above and the chaise lounge and bench chair below.

这个躺椅框架折叠成七种不同的座位位置，包括扶手椅和躺椅和长椅。

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But Milnor constructed a seven-dimensional sphere (in fact, exactly 28 of them) that is too badly twisted to be unscrambled without creating corners and folds.

然而米尔·诺尔构造了一个7维球体(实际上是28个维度)，这个球体非常扭曲，无需通过创建拐角和折叠来解析。

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