? Knots include single knot, double single knot, single knot ring, double knot, braided splayed knot, Prussian knot and so on.
? I can tie a single tie: we hold the tail of the thread with our left hand, and wind it counterclockwise with our right hand, and the tail of the right thread winds counterclockwise for half a turn, so that two overlapping circles will appear. Press the tail of the right line counterclockwise to the tail of the left line, press the lower right circle, press the left line on the right line, and pull out the upper left circle. The tail of the right line is counterclockwise downward, press the left line and press the right new circle, pick up the left and right intersection lines, and walk out from the center square. The index finger extends into the square in the center of the knot, and the Chinese knot we knitted is wound around the index finger, then we remove the finger, and our two hands stretch the left and right ends to the left and right respectively.
? It is difficult to express this system in words, but it is simple to do in practice.
? Every knot is the crystallization of human wisdom, and the wonderful knot has opened my eyes.