To add the finishing touch to a piece of writing or speech, making it more vivid and powerful by highlighting the key point or essence.
这篇报告数据详实，但如果能在结论部分画龙点晴，点出关键见解，整个报告的冲击力会更强。
This report is rich in data, but if a crucial insight could be added in the conclusion, 'dotting the dragon's eyes,' the whole report would have a much greater impact.
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