The fund is a long-term investment. Xiaobai suggested not rushing to buy or sell. It's easy for you to teach too much. See if the fund you choose is the direction of government development or the current trend industry. If so, don't panic. This is only a temporary adjustment. However, if the previous increase is too large, it is still necessary to consider whether the callback will be too large and whether it will be sold. If it is a sunset red industry, it will be difficult for the industry to return to a high level once it drops too much.