The 15-minute K-line appears "yang wrap yin" (the yang line swallows the previous yin line), or steps back on the 3310-3320 range and closes the "small yang line stabilizes", you can try long positions lightly, and the stop loss is set below 3300

If you want to be stable, you can look at the 1-hour K-line, such as stepping back around 3300, and there are bullish K-line patterns such as "hammer line" and "daystar", and at the same time, with the shrinkage of trading volume (indicating that the selling pressure has weakened), and then consider intervening, and the stop loss is set below 3280.

Note that if the K-line falls directly below 3280, it means that the short-term bulls have insufficient momentum and give up going long;
If it quickly rises to 3397 and then closes the "big black line", take profit and leave the market in time.