push against

英 美
  • vt. 推压(推撞)
    1. He felt something hard, like a gun, pushing against his back.
      他感到有什么硬东西,像是一把枪,顶在他的背上。
    2. An airplane cannot fly out into space be cause it must have the air for its propellers to push against.
      飞机不能飞入太空,因为飞机的螺旋桨如果没有空气的反推力推进,是飞不起来的。