特朗普反悔！称不会再在中国面前做好人，中国两张底牌让美国无解

Group 1 - The temporary agreement between China and the US on tariffs in early 2025 was disrupted by President Trump's accusations against China for not adhering to the agreement, indicating a significant shift in US-China relations [2][3] - Trump's sudden change in tone is believed to be influenced by China's control over critical resources such as rare earth elements and US Treasury bonds, which are vital to the US economy and high-tech industries [2][3][6] - China holds a dominant position in the rare earth market, producing over 70% of the global supply and controlling 90% of processing capabilities, which poses a significant challenge for the US [5][10] Group 2 - China's reduction of its holdings in US Treasury bonds from $1.3 trillion in 2013 to $734.8 billion in 2025 has raised concerns in the US, leading to increased borrowing costs and economic pressure [3][6] - The US is attempting to diversify its rare earth supply by seeking partnerships with countries like Australia and Canada, but faces challenges in establishing a complete supply chain due to technological and processing limitations [6][10] - The ongoing reduction of US Treasury bond holdings by China and other countries could lead to increased financial strain on the US government, affecting inflation and economic stability [7][8]