$BTC To trade contracts, please choose the largest exchange. There is no other option but the largest exchange, BNB. Many exchanges have set up robots. When you reach a certain profit, they will immediately give you a pin. They will make you explode directly. They will not let you react, and you will be back to zero. You will earn money and they will be left with nothing. There are basically no people who get rich overnight in contracts. #BTC走势分析 #OpenSea收到韦尔斯通知