I agree with you, you are most likely talking about people

来源: 于 2010-02-15 13:53:17 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

who are also just walking, but runners and bikers would politely remind you that they would pass and if you yield, they would thank you. I do that all the time. I think this is the rule of thumb in the park trails.