Definition
To decisively stop something from occurring or to bring something to a complete end.
阻止某事发生；或最终完成某事。
We need to knock this plan on the head as soon as possible before it causes more damage.
我们需要尽快阻止这个计划，以免造成更多损害。
We need to knock this project on the head before we go over budget.
我们需要在超支之前完成这个项目。
The team played exceptionally well in the last game and finally knocked their losing streak on the head.
球队在上一场比赛中表现出色，终于结束了连败。