关税硬扛30天后，巴西等来中方一通电话，卢拉有了斗争到底的决心

Group 1 - Brazil's President Lula has gained determination to resist U.S. tariff threats after receiving a supportive call from China [1][3][4] - Chinese Foreign Minister Wang Yi expressed three firm supports for Brazil, emphasizing the defense of national sovereignty and the importance of cooperation among developing countries [4][6] - The situation illustrates that even countries closely tied to the U.S., like Brazil, are willing to stand against U.S. hegemony, countering Trump's strategy to divide and conquer BRICS nations [6][10] Group 2 - Trump's initial strategy involved targeting BRICS countries individually, starting with China, but faced resistance leading to a shift towards negotiations [8][10] - The ongoing pressure from the U.S. has inadvertently strengthened the unity among global South countries, as they collectively resist hegemonic practices [10][11] - The U.S. actions are damaging its international credibility and increasing distrust in the dollar, undermining its own claims of maintaining dollar dominance [10][11]