clarify a diagnosis

例句：

1. 1.The teacher clarified the confusing passage for us.
   老师为我们解释了那个令人困惑的段落。
2. 2.Clarify your thoughts before you speak to someone.
   在和某人交谈之前，先澄清你的想法。
3. 3. The report clarified the issues that needed to be addressed.
   报告澄清了需要解决的问题。