We've all seen these pictures in magazines, on the internet, everywhere, of people going from a certain physique, either fat or really skinny, to a very muscular physique.

我們都在雜誌、網際網路、到處都看過這些照片，人們從某種體態，無論是肥胖或非常瘦，變成非常肌肉發達的體態。