1. She enjoys multirunning, participating in multiple marathons on the same day.

她喜欢多次参加跑步比赛，在同一天里参加多个马拉松比赛。

2. The fitness app allows users to track their multirunning activities and set goals accordingly.

这款健身应用程序允许用户跟踪他们的多次跑步活动，并相应地设定目标。