Web帆脚索. bowline uk / ˈbəʊ.lɪn/ us / ˈboʊ.lɪn/ noun specialized. a rope attaching one side of a square sail to a ship's bow: We've let loose the bowline and we're drifting. 我们解开了帆脚索,让船在水上漂着。. bowline uk / ˈbəʊ.lɪn/ us / ˈboʊ.lɪn/ noun. a simple type of knot for making a loop that does not slip ...