李成钢说，中美双方经贸团队就彼此关注的重大议题进行了深入、坦诚、建设性的交流

Group 1 - The core viewpoint of the article highlights the ongoing constructive dialogue between the US and China regarding significant economic issues, as emphasized by China's Vice Minister of International Trade Negotiations, Li Chenggang [1] Group 2 - The discussions are a continuation of the consensus reached during the phone call between the leaders of both countries on June 5 [1] - The economic teams from both nations have engaged in in-depth and candid exchanges over the past day and a half [1]