美联储副主席杰斐逊：劳动力市场正在放缓，因为整体经济环境变得更加不确定。

Group 1 - The core viewpoint is that the labor market is slowing down due to increased uncertainty in the overall economic environment [1] Group 2 - The statement is made by the Vice Chairman of the Federal Reserve, Jefferson [1] - The commentary reflects concerns about the broader economic conditions impacting employment [1]