To fail to recognize or appreciate someone's true qualities, profound knowledge, or talent, especially when that person is close by or well-known.
他虽然和这位专家共事多年，却一直把他当作普通同事，真是东家丘，不识真才实学。
Although he had worked with this expert for many years, he always treated him as an ordinary colleague; truly, he was a 'Dong Jia Qiu,' failing to recognize the true talent and knowledge.
Era:
Ancient
Frequency:
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