Profit-taking refers to the process of chip exchange when the price goes in one direction, which is a technical callback opposite to the previous direction.

Selling pressure refers to a large amount of selling when the price rises to a certain resistance level. The more energy you sell, the heavier the pressure. When the price rises above this price, it is often the buying point.

Short covering refers to opening a short position at a high level, and buying and closing the position when the price falls to a satisfactory level, so that the price will rebound temporarily, but not to the original height. It is equivalent to a short profit.

Closing the position refers to closing the loss sheet after buying the varieties in the same direction at a relatively low price, so as to achieve the purpose of spreading the cost (an undesirable method).