不准买俄罗斯石油，买了就加税，美国的警告，中方可能不会在乎

Core Viewpoint - The upcoming US-China trade negotiations are overshadowed by US threats regarding China's oil purchases from Iran and Russia, indicating a strategic maneuver by the US to exert pressure on China [1][12][19]. Group 1: US Strategy - The US Treasury Secretary has highlighted China's role as a major buyer of Iranian and Russian oil, suggesting that this issue will be a focal point in the upcoming trade talks [3][12]. - The US aims to leverage the threat of sanctions to compel China to reduce or cease its oil imports from these countries, which are economically dependent on oil exports [5][12]. - The concept of "secondary sanctions" is introduced, targeting countries that trade with Iran and Russia to further isolate these nations economically [7][12]. Group 2: China's Response - China has consistently opposed US unilateral sanctions, asserting that its oil purchases are a matter of national interest and not subject to US interference [14][15]. - The Chinese stance indicates that it will not engage in discussions regarding oil purchases during the trade negotiations, focusing instead on tariff-related issues [17][19]. - The situation reflects a broader strategy by the US to use oil sanctions as a tool for negotiation, which China is likely to dismiss as a tactic lacking real leverage [19][21].