In the 4-hour timeframe for Bitcoin, the price is moving at the upper limit of the downward channel, indicating clear downward pressure. The significant drop in the previous trading day has surpassed the triangle consolidation area, further confirming the strength of the current downward trend. However, the market has recently formed a 'cross star' and 'bullish engulfing' pattern, suggesting that the market may enter a short period of hesitation, and the possibility of a rebound upwards to test the resistance level cannot be ruled out. In terms of technical indicators, the MACD still shows the dominance of selling power, and downward trends are expected to continue in the short term. General analyses indicate that the market currently maintains a state of weakness and decline, and the main support level around 102600 should be closely monitored, while 104150 represents an important pressure level. If the price cannot return to 104150 and effectively stabilize within the triangle area, the market is expected to continue testing the lows in the evening. As for the trading strategy, a sell position can be considered near 103900 or 104200, with a price target ranging between 103200 and 102900, and if the price does not break a new low, consideration can be given to switching to a buy position. Regarding Ethereum, short selling opportunities can be monitored in the range of 2440-2450, with a price target in the range of 2410-2400 to reconsider buying. Please note that the above analysis is for reference only, and strategies should be adjusted accordingly.