It has been nearly an hour since the weekly support of 57472u was reached for the first time at 16:39 this afternoon, and there has not been even a decent rebound so far. The most violent rebound is when this price is just touched. Many long orders entrusted by dealers at this position will be traded immediately when it is touched. The weak rebound strength indicates that the short side has eaten up all these orders. You can imagine how strong the short side is!