unhorse[,ʌn'hɔ:s]

• vt.
  • 使从马背上摔下；把…拖下马：

    She was unhorsed while riding in the garden.

    她在花园骑马时被马从马背上掀了下来。

  • 赶…下台，推翻：

    to unhorse one's opponent

    击败敌手

• 变形:

  vt.unhorsed.unhorsing