@lingbei
Regarding the rules for short-term profit-making after a sharp decline~
When the trend is downward, don't worry about whether the short-term profit is short-term, as long as the profit is successful ~
When the trend is upward, you can profit from short-term fishing, or you can let it go, depending on your position and mentality~
When the trend is unclear or volatile, the rules for short-term profit-making are the same as when the trend is downward~