1. One of the cruxes of the argument was the lack of evidence to support their claims.
这个争论的关键之一是缺乏证据支持他们的说法。

2. Understanding the cruxes of a problem is essential for finding a solution.
理解问题的关键点对于找到解决方案至关重要。

3. The cruxes of the matter are still being debated among experts.
这个问题的关键点仍在专家之间进行讨论。

4. We need to focus on the cruxes of the issue in order to make progress.
我们需要专注于这个问题的关键点，以便取得进展。

5. Identifying the cruxes of a project can help streamline the process.
找出项目的关键点可以帮助简化流程。

6. The cruxes of the negotiation were finally agreed upon by both parties.
最终，双方就谈判的关键点达成了一致。