救援结技巧，需要时迅速抛出绳子，以便他人接住。

开水太烫没法喝？教你一招，热水1分钟变凉水，简单又实用

Pig trotter locking is very simple and practical. Many places use knot skills to help with life

卫衣绳这样系特别简单又特别漂亮，你也学起来吧！#卫衣绳打结方法 #卫衣绳 #卫衣绳子绑法 #卫衣绳系法 #卫衣绳结

The Italian half-knot is often used for emergency escapes in construction operations, etc. Learn