halfback /ˈhɑːfˌbæk/ (also half back or half-back)

• 1. 

  N-COUNT In American football, a halfback is an attacking player who stands behind the front line and runs with the ball. 中卫

  例：

  Berwanger was a halfback for the University of Chicago Maroons.

  柏华格是芝加哥大学红翼队的中卫。