Supermarket selling meat is called buying. How do you call jingle the best?

1) Try to reduce the indoor temperature (flies like warm places and are afraid of cold) 2) Buy fly-killing lamps (don't put them where customers can't see them, or flies will die everywhere) 3) Directly use the frozen refrigerator as a counter (the one with a glass cover), and flies "come" with the smell of meat. As soon as the refrigerator froze, the meat came.