Read Edit View history 刻苦钻研 kèkǔzuānyán to study diligently Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 刻苦钻研/ 刻苦鑽研 kèkǔzuānyán to study diligently To apply oneself with great effort and persistence to research or study Edit Delete References Add reference No references for this word.
刻苦钻研/ 刻苦鑽研 kèkǔzuānyán to study diligently To apply oneself with great effort and persistence to research or study Edit Delete