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我不是流行歌手。我是行为艺术家。
The best way to untangle a knotty tangle is not to “untie” the knots, but to keep pulling the loops apart wider and wider. Just make the mess as big, loose and open as possible. As you open up the knots they will unravel themselves. Works on cords, strings, hoses, yarns, or electronic cables.
数学是一门活生生的学科,不断演变和发展。