$ETH Long position operation! Currently at 2225, after a brief rebound it will still turn downward sharply, be careful not to be fooled! Watch the support at 2180, and consider building long positions around 2185-2190, with a more aggressive approach near 2210 for light positions. Be aware at this level whether 2180 will be broken through, how strong the break is, and whether it recovers afterward. If 2180 is confirmed to be broken, stop loss at 2150 and re-enter. If the position is small, hold until 2150 to see how it performs. If 2150 is broken, go directly short to 2030.