unclear fact

例句：

1. 1. The report contains several unclear facts that need clarification.
   报告中包含几个不清楚的事实，需要澄清。
2. 2.The scientist's explanation was unclear, leaving many unanswered questions.
   科学家的解释不清楚，留下了许多未回答的问题。
3. 3.The decision is based on an unclear fact, which needs further investigation.
   这个决定是基于一个不清楚的事实，需要进行进一步的调查。