knock against

• • 碰，撞：

    I knocked the cup against the table and broke it.

    我把杯子碰到桌子上打碎了。

    The car knocked against the garage door and damaged it.

    汽车撞到了车库的门上，把门弄坏了。

  • 碰见，偶然遇到：

    I knocked against Jim on the street yesterday.

    我昨天在街上碰到了吉姆。