Bitcoin experienced a long wick candle near 68500 and then faced pressure to fall back. It's not difficult to see the strong resistance above. Looking at the technical indicators on the four-hour chart, the recent candles show that the price has experienced a period of decline, currently undergoing a small rebound, but the rebound strength is limited, with the risk of further pullback. The current price is close to the middle band of the Bollinger Bands, indicating that the price may linger near the middle band or dip towards the lower band. The MACD histogram in the attached chart is red and in a declining posture, indicating significant bearish momentum. The KDJ value shows that the market is weakening and may continue to decline.