It's a little troublesome. . Chop off the head first, and then stick it on the fin along the bone (flat knife) until the tail is not chopped off because it needs peeling. When peeling, cut a knife on the meat. Cut with an oblique knife after reaching the skin. At the same time, the other hand pulls the cut fish skin back, as simple as that. I may not be very skilled at first. . Knife workers slowly contact themselves. Can't pull out the seedlings to encourage!