Definition
To reach a critical point where a decision or action must be taken; to bring a situation to a crisis point.
（情况）达到紧要关头；（使某事）达到必须解决的地步。
The tension between the two parties had been building, and this argument finally brought things to a head.
两党之间的紧张局势一直在加剧，而这场争论终于使事情达到了紧要关头。
The internal conflict within the company had been escalating and finally came to a head during a meeting.
公司内部的冲突一直在升级，最终在一次会议中达到了紧要关头。
The delays in the project have come to a head, and action must now be taken.
项目的延误已经到了紧要关头，现在必须采取行动。