美国宣布制裁

Group 1 - The core viewpoint of the article is that the U.S. Treasury Department has imposed sanctions on entities involved in facilitating Iranian oil trade, indicating a continued effort to restrict Iran's oil exports [1] Group 2 - On July 3, the U.S. Treasury's Office of Foreign Assets Control (OFAC) announced sanctions against multiple commercial networks assisting Iranian oil trade [1] - The sanctioned entities include companies operated by Iraqi businessmen and vessels involved in the clandestine transportation of Iranian oil [1] - Additionally, sanctions were imposed on seven senior officials of Hezbollah and an entity related to a financial institution controlled by Hezbollah [1]