美媒：特朗普特使在阿曼与伊朗外长进行了直接会面

Group 1 - The core viewpoint of the article is that the United States and Iran are engaging in nuclear negotiations, with expectations for further discussions in the coming days [1] - The talks took place in Oman, involving direct communication between U.S. officials and the Iranian Foreign Minister [1] - Historically, Iran has preferred to communicate through intermediaries, but recent meetings included direct exchanges between officials [1]