Sounds like an obsessive health or fitness nut -- or Barack Obama, who just fin-ished a marathon 21-month cam-paign to win the presidency.

• 听起来好像得到健身强迫症或是个健身狂，或者是欧巴马，他才结束长达21个月马拉松式的竞选活动并顺利当选总统。