created sense approved 刻苦钻研/刻苦鑽研 · kèkǔzuānyán · to study diligently — "Initial import from upstream dictionary"
刻苦钻研 / 刻苦鑽研
kèkǔzuānyán
to study diligently
To apply oneself with great effort and persistence to research or study
刻苦 (literal) → 刻苦 · kèkǔ · hardworking 钻研 (literal) → 钻研/鑽研 · zuānyán · to study intensively
Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition