The first rebound position for Mrs. looks at 3720, and the pullback to 3480 or 3350 can be a self-selected position for rolling positions. Choose based on your own position and risk situation, waiting for the price to test 3730 again and form an effective breakthrough. If so, you can add a position again based on your own position risk situation. That's all I have to say, if you don't understand, just take it as fun.