To have keen insight; to perceive hidden truths or obscure matters.
他凭借犀照牛渚般的观察力，发现了案件中的关键线索。
With his keen observation skills, like the rhinoceros horn illuminating Niuzhu, he discovered the crucial clue in the case.
Era:
Ancient
Frequency:
Synonym:
Story:
During the Eastern Jin Dynasty, Wen Jiao arrived at Niuzhu Cliff.
Seeing that the water was unfathomably deep and rumored to contain many water monsters, Wen Jiao lit a rhinoceros horn to illuminate the depths.
He saw the water below light up brightly, revealing strange and grotesque monsters, some riding carriages and others dressed in red.
That night, Wen Jiao dreamt that a figure maliciously blamed him for shining the rhinoceros horn light.
The very next day, he suffered a stroke after having a tooth pulled due to a toothache, and died less than ten days after returning to town.
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