The atmosphere is here. Once 30,000 is broken, the shorts will be afraid of stop loss. We will place a 1/5 position short order at 30200 and a 1/5 position at 30400. Then observe whether CRV rises or not. If it rises, it will not move. Stop loss when it breaks a new high. If CRV still does not move, even if it falls below 30,000, just find a position to increase the position to 3/5. That's all I have to say.