Do not open new short positions around the 4-hour support of 66218 for Bitcoin during the day;

When shorting, pay attention to whether the top K-line appears at the intraday resistance of 68240 and 68600. If there is a bearish engulfing, go short. If not, do not go short.

Conditions for going long: 66281 is not broken by the 4-hour negative line entity during the day. If it does not fall below today, go long tomorrow when the yellow arrow goes down;

Both going long and going short require conditions. Do not go short at the support position.