1. 相撞：knock their heads together 拿两人的头撞 | knock together 相撞 | knock under to 屈服

2. knock together

2. 急促做成：knock rating 爆震率 | knock together 急促做成 | knock 爆震声

3. 匆匆拼凑：排除万难 knock over every difficulty | 匆匆拼凑 knock together | 我极为惊讶. You should have knocked me down with a feather.

4. (使)互撞;草草做成：knock through 把(两个房间的隔墙)拆除, 打通 | knock together (使)互撞;草草做成 | knock under 屈服; 服输, 投降

1. 草草做成（或建成）；匆匆拼凑成
    If you knock something together, you make it or build it very quickly, using whatever materials are available.

    e.g. Find Bernie and get him to knock an agreement together...
           找到伯尼，让他尽快拟好一份协议。
    e.g. ...a shelter knocked together using wooden doors and door frames.
           用木制门和门框匆匆搭起的棚子