From the start, John Kerry said he knew he had "big heels to fill" replacing Hillary Clinton. She said his service on the Senate Foreign Relations Committee made him the right choice.
"He has a view of the world that he has acted on, first as that young returning veteran from Vietnam who appeared before this committee, through the time that he served with such distinction as its chairman.
On his first trip as secretary of state, this son of a foreign service family made clear his commitment to the men and women who carry out U.S. policy abroad.
"I have to tell you that the job you are engaged in is one of the greatest jobs in the world, and I am now privileged to share that journey with you.
So how will John Kerry's time as Washington's top diplomat differ from Hillary Clinton's?
Steve Heydemann at the U.S. Institute of Peace says Clinton's early rivalry with Barack Obama put pressure on her to show loyalty to the president.
"She, I think, worked very hard to preserve the impression of consensus even though we now know that there were some important differences under the surface. It seems to me that Secretary Kerry has been more willing to push the boundaries of policy, to challenge the limits imposed by the White House.
1.predecessor n. 前任，前辈
The new governor dismissed the staff that served his predecessor.
2.boundaries n. 边界，界线（boundary的复数形式）；界限
Drug traffickers operate across national boundaries.