This was rather too violent exercise to last long.

这是相当剧烈的运动，无法持续太久。

Such violent exercise took the breath out of him directly, and he dropped like an empty bag.

如此剧烈的运动，直接让他喘不过气来，整个人像个空包一样倒了下去。

Come on, buddy, cheer up. Why not do some sports with me? Violent exercise might help to shake you out of your disappointment in love.

加油，老弟，振作点。和我去做些运动吧？剧烈运动可能会帮助你从失恋中解脱出来。