跑步的英语是 run，既可以用作动词，也可以用作名词。当用作动词时，表示“跑”或“奔跑”；当用作名词时，表示“跑步”这个行为或活动。例如：
1. I like to go for a run in the morning to start my day.
2. She is running a marathon next month.
3. They were running to catch the bus.
跑步的英语是 run，既可以用作动词，也可以用作名词。当用作动词时，表示“跑”或“奔跑”；当用作名词时，表示“跑步”这个行为或活动。例如：
1. I like to go for a run in the morning to start my day.
2. She is running a marathon next month.
3. They were running to catch the bus.
