runner pin

例句：

1. 1. This runner pin is a great way to keep track of your running distance.
   这个跑腿钉是记录你跑步距离的好方法。
2. 2.The runner pin was a gift from my friend, and I couldn't wait to use it.
   这个跑腿钉是我朋友送的礼物，我迫不及待想要使用它。
3. 3.The runner pin helped me remember to take breaks while running.
   这个跑腿钉帮助我记住在跑步时休息一下。