美国驻华大使庞德伟写道：很荣幸在此欢迎众议员代表团，称其至关重要

Group 1 - The visit of the U.S. congressional delegation to China marks the first since 2019, highlighting a potential shift in U.S.-China relations amidst ongoing trade tensions [2][10] - The U.S.-China trade war has been ongoing since July 2018, with significant tariff increases from the U.S. on Chinese goods, leading to an economic standoff [2][5] - Despite high tariffs, China's trade surplus with the U.S. has grown from $323.3 billion in 2018 to $361 billion in 2024, indicating a complex economic relationship [5] Group 2 - The delegation's visit is seen as an attempt by the U.S. to engage in dialogue with China, especially during a period of stalled trade negotiations [7][10] - The contrasting backgrounds of U.S. Ambassador Nicholas Burns, a business elite and Republican hawk, reflect the internal contradictions in U.S. policy towards China [7][10] - China's response to the delegation was cautious yet open, emphasizing the importance of stable U.S.-China relations and the need for constructive engagement from the U.S. Congress [10]