1、碰撞
... 攻击;攻打 [assault;attack] 碰撞;接触 [come in contact with;bump into] 杀;搏杀 [kill;slaughter] ...
2、碰上
... in connection with关于，与…有关 come in contact with接触，碰上 out of contact推动联系，没有接触 ...
3、与…取得联系
...hand in hand 手拉手,亲近come in contact with 与…取得联系come out of sth，按照，退缩;s word 遵守诺言 ...