难道是因为要欢迎美国的新外交部长?
(All Photos by U.S. Department of State)
U.S. Secretary of State Rex Tillerson chats with his counterparts before a family photo at the G-20 Foreign Ministers’ Meeting in Bonn, Germany, on February 16, 2017. This is his first official trip as Secretary of State. [State Department photo/ Public Domain]