If the daily line closes above 3.9 after eight o'clock, you can take a small position to go long one lot, with a stop loss of 0.05 points, strictly stop loss at 3.85, take profits in batches at 4.0, 4.1, and if it reaches 4.2, exit completely. If it truly breaks through, it's not too late to enter again. Take a nap and recharge.