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Sweatshirt floating rope knot. Sweatshirt floating rope should not be too long and inconvenient

户外攀岩安全绳结，只需几秒钟就能学会

The four-leaf clover knot, sweatshirt, sweatpants and shoelaces can be tied firmly like this, an

The knot to retract the rope completely during fire rescue and emergency escape is particularly