matters needing attention

例句：

1. 1. The matter of the investigation is still under discussion.
   调查的问题仍在讨论中。
2. 2.It's important to address the matter at hand.
   解决眼前的问题很重要。
3. 3. The company needs to address the matter of safety before it can proceed with the project.
   在推进项目之前，公司需要解决安全问题。