unclear number

例句：

1. 1. The instructions were so unclear that I couldn't follow them.
   说明非常不清楚，我看不懂。
2. 2. The weather forecast was unclear, leaving us unsure of the weather conditions.
   天气预报不明确，让我们对天气状况感到不确定。
3. 3.The report on the accident was unclear, leaving many questions unanswered.
   关于事故的报告不清楚，留下了许多未解答的问题。