市场对美联储12月减息的预期再度降温！比特币跌穿9万美元大关，为今年4月以来最低水平，蒸发今年以来逾30%的升幅

Group 1 - The market's expectations for a Federal Reserve interest rate cut in December have cooled again [1] - Bitcoin (BTC) has fallen below the $90,000 mark, reaching its lowest level since April of this year [1] - This decline has resulted in a loss of over 30% of Bitcoin's gains for the year [1]