碰

（一物体突然接触另一物体; 撞击） touch; bump:

• 把墨水瓶碰翻了

  knock the ink-bottle over;

• 在事实面前碰得头破血流

  butt one's head against a wall of hard facts;

• 他绕桌子走了一圈， 和所有的外宾都碰了杯。

  He walked around the table touching glasses with all the foreign guests.

• 屋子里很黑，我（的头）碰到了门上。

  The room was dark and I bumped (my head) against [on] the door.

• 他摔倒时额头碰在了路边镶边石上。

  He hit his forehead against the kerb when he fell.

（碰见; 遇到） meet; run into:

• 在街上碰到一个熟人

  run [bump] into an acquaintance in the street;

• 我没碰着他。

  I didn't see him.

• 我在路上碰到你妹妹了。

  I met your sister on the way.

• 他们再次碰到了麻烦。

  Again they got into trouble.

（试探 ） try one's luck; take one's chance:

• 碰碰机会

  take a chance;

• 你去碰碰看，他也许在家。

  You may go and try your luck; he may be at home.

（开短会） meet to discuss:

• 咱们碰一下各组讨论的情况。

  Let's meet and review briefly each group's discussion.