Looking at the four-hour charts of Bitcoin and Ethereum, after three consecutive bullish candles, the upward momentum is clearly weakening. Currently, the price is still hovering below the middle band of the Bollinger Bands. There is some support below, but the bulls have attempted to break through multiple times without success, indicating that buying interest has not yet fully gathered. From this trend, it seems that in the short term, a further pullback and adjustment may be necessary for a period of time, so everyone should be mentally prepared.