figure of eight knot

例句：

1. 1. This knot is a common method for securing ropes together.
   这个结是固定绳索的常用方法。
2. 2.The sailor used the figure of eight knot to tie his boat securely.
   水手用八脚结把船系得牢牢的。
3. 3. When we were lost at sea, we used the figure of eight knot to find our way back to land.
   我们在海上迷路时，用八脚结找到了回家的路。