美国众议院议长约翰逊：关税谈判复杂，贸易必须自由公平。现在是投资美国的好时机。

Core Viewpoint - The Speaker of the U.S. House of Representatives, Johnson, emphasized the complexity of tariff negotiations and the necessity for free and fair trade, stating that now is an opportune time to invest in the United States [1] Group 1 - The complexity of tariff negotiations indicates potential challenges in international trade relations [1] - The call for free and fair trade suggests a focus on equitable market practices, which could impact various industries [1] - The assertion that it is a good time to invest in the U.S. highlights potential growth opportunities in the domestic market [1]