http://vva.org/veteran/0607/books.html
In the article about Pham Xuan An, they said:
What does but mean here in the last sentence?
In the article about Pham Xuan An, they said:
n this first full-length English language biography of Pham Xuan An, Larry Berman explores An’s life sympathetically and with verve. A professor at the University of California, Davis, historian, and author (No Peace, No Honor: Nixon, Kissinger and Betrayal in Vietnam), Berman is well-equipped for this story. He met An at a dinner in Ho Chi Minh City, became fascinated with him, and made a succession of visits to further their acquaintance. Along the way, he achieved unparalleled access to his subject and became his authorized biographer. The result is fascinating but frustrating.
What does but mean here in the last sentence?