拳击运动界；拳术界boxing circles(plural)

• 唐•金表示，他将协助泰森重返拳坛。

  Don King says that he will help Tyson to return to the world of boxing.

• 美国队中有好几人在步入拳坛之前曾练过空手道和摔跤。

  Several people on the U.S. team practiced karate and wrestling before entering the world of boxing.