It's fun, and the time flies by during each session, because you're working in cycles of high and low intensity work instead of spending a long period of time at any one activity.

这样很有意思，时间也会过得飞快，因为你用两种强度内容在训练而不是原来长期的一个训练内容。

youdao

It's fun, and the time flies by during each session, because you're working in cycles of high and low intensity work instead of spending a long period of time at any one activity.

这样很有意思，时间也会过得飞快，因为你用两种强度内容在训练而不是原来长期的一个训练内容。

youdao