Đổ đầy thức ăn vào dĩa. Mua tô cho chó ăn. Chia thức ăn của chó thành nhiều phần. Đặt một cục đá lớn ở trung tâm của cái bát và trải đều thức ăn xung quanh. Nâng cao bát thức ăn.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Rather than dump the food into a dog dish, turn a metal non-tip bowl upside down. Spread the food in the ring surrounding the center. For your dog to get all the food, he has to circle around the bowl as well as pick his head up to shift to the other side. Even something this simple can slow your dog down a bit when it comes to eating and doesn't require any new equipment. If you do want to purchase a commercial plastic  bowl, try the Brake Fast Bowl or Slow Feeder. They are non-tip bowls with p