不许加拿大和中国达成贸易协议，外媒：特朗普再次拿出关税武器

Group 1 - Canadian Prime Minister Carney expressed the intention to deepen trade cooperation with China during his visit, resulting in significant trade agreements, including the approval of electric vehicle imports from China and the resumption of canola seed imports from Canada [1] - The trade relationship between Canada and China is showing signs of recovery, as Canada seeks alternatives to its historically close ties with the U.S. amid increasing pressure from American trade policies [1][8] - U.S. President Trump reacted strongly to the Canada-China trade agreements, threatening to impose 100% tariffs on Canadian goods if the trade continues, indicating a desire to control trade dynamics [3] Group 2 - The U.S. has a history of using tariffs as a tool to pressure trade partners, as seen in past actions against Japan, South Korea, and the EU, and continues to apply this strategy against Canada [7] - Canada's economic pressure from the U.S. has led it to seek diversification in its trade relationships, particularly with China, as a response to American coercion [8] - The unpredictability of U.S. trade policies raises concerns among other allies, as the treatment of Canada may signal potential risks for other nations in their dealings with the U.S. [9]