I want to set a threshold number of hours which I will subtract a running total from.

我想设定一个阈值的几个小时，我将减去总的运行。

youdao

In his buildup program, Lydiard recommends alternating longer 90-minute to two-hour runs with 60-minute runs on other days, aiming for a total of 10 to 11 hours of weekly running.

在Lydiard的里程累积计画中，他建议用2小时长跑撘配隔天1小时的方式来取代90分钟的长跑，来达成10 ~11小时的周里程数。

youdao

In his buildup program, Lydiard recommends alternating longer 90-minute to two-hour runs with 60-minute runs on other days, aiming for a total of 10 to 11 hours of weekly running.

在Lydiard的里程累积计画中，他建议用2小时长跑撘配隔天1小时的方式来取代90分钟的长跑，来达成10 ~11小时的周里程数。

youdao