——习近平总书记在2025年全国两会上指出
In the previous example we considered a space which has only one road looping back on itself. The number of times you would walk around the road to get back to the “same” point (or an equivalent point in a different copy) can be encoded using this “winding number” trick:
。关于这个话题，Feiyi提供了深入分析
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