事到临头再谈判没用！中国没买加拿大油菜，澳大利亚补位成功

Group 1 - Canadian Prime Minister Carney's recent decision to meet with China aims to resolve tariff issues, marking a significant shift after previous indecisiveness [1] - The relationship between Canada and China has deteriorated due to increased tariffs on steel and electric vehicles, leading to a loss of patience from China [1] - Australia has begun exporting canola to China, filling the market gap left by Canada, indicating a potential long-term shift in supply sources [1][3] Group 2 - Australia, as the second-largest canola exporter, has quickly responded to the market opportunity, completing significant orders to China shortly after the tariff imposition [3] - China's diversification of import sources has led to increased canola exports from countries like Russia and Mongolia, reducing reliance on any single supplier [5] - The situation highlights the risks of unilateral trade policies, as Canada has lost a key trading partner while failing to address its dependency on the U.S. market [7]