To meticulously and painstakingly study or research; to apply oneself to profound and diligent intellectual work, as if carving one's liver and piercing one's kidneys.
为了攻克这个技术难题，他常常废寝忘食，镂肝鉥肾地研究着
To overcome this technical challenge, he often forgot to eat and sleep, meticulously and painstakingly researching it.
Era:
Modern
Frequency:
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