- （一物体突然接触另一物体; 撞击） touch; bump:

knock the ink-bottle over;把墨水瓶碰翻了

butt one's head against a wall of hard facts;在事实面前碰得头破血流

- （碰见; 遇到） meet; run into:

run [bump] into an acquaintance in the street;在街上碰到一个熟人

I didn't see him.我没碰着他。

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

take a chance;碰碰机会

You may go and try your luck; he may be at home.你去碰碰看，他也许在家。

- （开短会） meet to discuss:

Let's meet and review briefly each group's discussion.咱们碰一下各组讨论的情况。