knock on the head

• vi. 杀掉(破坏)

knock on the head的用法和样例：

例句

用作不及物动词 (vi.)

1. They had orders to snuff out the enemy guards.
   他们接到了杀掉敌卫兵的命令。
2. It is likely that they will kill the hostage.
   可能他们将杀掉人质。