rhetorician [ˌrɛtəˈrɪʃən]

例句:

• A sophisticated rhetorician, inebriated with the exuberance of his own verbosity.
  来自fig.
• Obama is an orator, for one thing a rhetorician of the old school.
  来自WSJ
• Nor is he an extemporaneous rhetorician; in public appearances, he rarely strays from his script.
  来自NEWYORKER