You take a horse on a hot day, and after about five or six miles, that horse has a choice: it's either going to breathe or it's going to cool off.
خذ على سبيل المثال الحصان الى سير في يوم حار بعد 5 او 6 اميال .. لديه خياران اما ان يتسارع تنفسه .. واما ان يتنوقف لكي يرتاح