美国对伊朗释放了哪些信号？

Group 1 - The core viewpoint is that the U.S. military actions have significantly damaged Iran's nuclear program, with President Trump claiming it has been "completely destroyed" [1][3] - Trump announced that the U.S. and Iran will hold talks next week, potentially leading to an agreement, although he emphasized that such an agreement is not "necessary" [2] - There are indications that the U.S. may relax sanctions on Iranian oil to assist in Iran's recovery, as Trump mentioned that Iran will need funds to rebuild [2] Group 2 - Trump maintains a strong stance against Iran's nuclear activities, asserting that the U.S. will not tolerate any continuation of these activities [3] - The effectiveness of the U.S. airstrikes on Iran's nuclear program is debated, with some analysts suggesting it may have set back the program by years, while others believe it may only have delayed it by months [3] - The CIA director stated that recent targeted strikes have severely damaged Iran's nuclear program, with reconstruction of key facilities potentially taking "years" [3] Group 3 - Iran has confirmed that its nuclear facilities have been severely damaged due to multiple attacks by the U.S. [4] - The Iranian Foreign Ministry spokesperson did not specify whether the damage was to surface or underground facilities [4]