The most stable short-selling opportunity is when the previous low is effectively broken, followed by a small-level pullback confirming the breakout. At this point, the trend is clear, and the stop-loss level can be clearly set.

Symmetrical logic: This logic also applies to bullish structures, simply reversing the direction; the core principle is completely symmetrical.

Essence of trading: Wait for the market to provide clear signals and follow the trend, rather than relying on subjective speculation.