They'll be able to listen to your breathing and guide you to either speed up or slow down, helping you zone in on the correct threshold pace for your current fitness.
根据你的呼吸频率，他们将指导你加速或减速，从而帮助你在当前身体状况下，找到适合你的门槛速度。
They'll be able to listen to your breathing and guide you to either speed up or slow down, helping you zone in on the correct threshold pace for your current fitness.
根据你的呼吸频率，他们将指导你加速或减速，从而帮助你在当前身体状况下，找到适合你的门槛速度。
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