美国不许加拿大和中国达成贸易协议，美财长：中国或面临额外惩罚

Group 1 - The article highlights the aggressive stance of the U.S. towards Canada regarding trade relations with China, indicating that any trade agreement with China could result in a 100% tariff on Canadian goods [1][3] - Canada is heavily reliant on the U.S. for its exports, with approximately 75% of Canadian goods sold to the U.S., making it vulnerable to U.S. trade threats [3][6] - U.S. Treasury Secretary's comments suggest that the U.S. will not only retaliate against Canada but also against China if Canada exceeds certain limits in its cooperation with China [3][6] Group 2 - The U.S. is attempting to impose a new rule where allies must not only refrain from independent business dealings but also face scrutiny over their trade partners, likening international trade to a form of gang logic [6][8] - The article argues that the U.S. concerns about Canada acting as a "backdoor" for Chinese goods are unfounded, given the established customs systems and trade agreements in place [8][10] - The U.S. is perceived as trying to maintain control over its allies, viewing them not as partners but as subordinate options that must align with U.S. interests [10][12] Group 3 - Canada is increasingly seeking to diversify its trade partnerships, particularly in critical minerals, high-tech, and clean energy sectors, which are seen as complementary to its interests with China [8][16] - Public sentiment in Canada is shifting, with over 70% of Canadians willing to endure short-term economic costs to reduce dependence on the U.S., reflecting a significant change in attitude [12][14] - The U.S. threats may backfire, as imposing tariffs could disrupt U.S. manufacturing and supply chains, ultimately harming American businesses and consumers [16][18]