U-Denominated Returns: Investing in USDT, using dual-currency financial products for buy-low, after successful buy-low, taking profits, earning interest income from the price difference.Operating Mode Introduction Basic Mode Buying and selling coins method: Use the buy-low direction to buy coins within a fixed price range, and after successful purchase, sell coins in the profit-taking direction. Definition of terms Target buy price: The target price at which you want to purchase cryptocurrency.