分组1 - The US Fed Chairman Jerome Powell faces criminal charges for not lowering interest rates quickly enough, reflecting tensions between the Federal Reserve and the US administration [2][3] - The US dollar index is experiencing downward pressure, while the Metals sector, including copper, gold, and silver, has seen significant gains, with silver reaching an all-time high of $84.69, up 6.7% [2][3] - The Grains sector is anticipating the USDA's January WASDE report, with expectations that the report may not significantly alter market trends despite the release of new data [3][4] 分组2 - The corn market showed a slight increase ahead of the USDA's report, with expectations that the agency may release numbers aimed at raising US corn prices, despite large immediate supplies relative to demand [4]