hackle pin

例句：

1. 1.The hackle pin is a small tool used to secure the horse's mane.
   马毛针是一种用来固定马鬃的小工具。
2. 2.She carefully placed the hackle pin into her hair.
   她小心翼翼地将马毛针插入了她的头发。
3. 3. The hackle pin was a symbol of her pride and honor.
   马毛针是她的骄傲和荣誉的象征。