2、 If trapped, the purchased item must immediately stop losing at a high level; If the purchased item is in the middle position, you can temporarily wait and see based on the current situation, in order to unwind and leave the market or reduce losses by reducing positions at high points; If the purchased item is at a low level, there is no need to rush to stop the loss. After the purchased item stabilizes in the downward trend, one should dare to replenish the position at a low level in important support levels, dilute costs, and rescue the high position trapped in the subsequent rebound market.