欧盟委员会执行副主席东布罗夫斯基斯：七国集团的贸易讨论主要关注关税的经济影响以及经济碎片化问题。

Core Points - The trade discussions among the G7 countries primarily focus on the economic impact of tariffs and economic fragmentation [1] Group 1 - The discussions emphasize the economic implications of tariffs [1] - There is a concern regarding economic fragmentation among nations [1]